HOMEBREW Digest #1074 Wed 10 February 1993

Digest #1073 Digest #1075

		Rob Gardner, Digest Coordinator

  A New Journal (Martin Lodahl)
  Irish Ales and other matters (Diane Duane)
  homemade wine (THOMASR)
  Info needed on Cincinnati brewpubs (babel)
  Homebrew Pubs in Boston? (LCNAVOT)
  yeast reuse correction & all grain costs (Jim Busch)
  Brewcap (Matthias Blumrich)
  Increasing Yields and Yeast (Mike Tavis)
  Wine (Jack Schmidling)
  Re: cold break (Brian Bliss)
  Summer Skiing at Mt. Hood (CCASTELL)
  Re: Extract Brewers, Yeast Attenuation (David Van Iderstine)
  Slow WYeast Growth (CCASTELL)
  Irish Red Ale (again) (Guy McConnell)
  Sanitizing counterflow chillers/All-grain snobs (korz)
  Re: recirculation FAQ (korz)
  Extracts knobs / overkill (WESTEMEIER)
  I need info on a research paper! (Kieran O'Connor)
  Shipping Homebrewed Beer? (dcheck77)
  Whole Hops (SynCAccT)
  Paulaner Hefe-Weizen (David Schleef)
  Garumph.  Enough with 'real brewers'! (thutt)

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---------------------------------------------------------------------- Date: Sun, 07 Feb 93 11:31:50 PST From: Martin Lodahl <gueuze!mal at PacBell.COM> Subject: A New Journal If you read the Celebrator this may be old news to you, but a new magazine devoted to the technical side of homebrewing, pub-brewing or microbrewing is about to make its debut. Called "Brewing Techniques", it will break new ground in homebrewing (as far as I know) by being an honest-to-goodness "peer review" journal. The Editorial Advisory Board (the peers who do the reviewing) consists of Patrick Baker, Byron Burch, Fred Eckhardt, Teri Fahrendorf, George Fix, Terry Foster, Mary Anne Gruber, Dave Miller, Greg Noonan, David Ryder and Bill Siebel. Impressive! The clear wort of usable brewing information certainly seems unlikely to be beclouded by the trub of unsupported speculation presented as fact, with a panel like that reviewing submissions. The magazine will be published 6 times a year, at a subscription price of $30. For an unspecified time there will be a $24 introductory rate for "charter" subscribers. To subscribe, send a note with your name and address information to: Brewing Techniques P. O. Box 3076 Eugene, OR 97403 You'll be billed after the release of the first issue, scheduled for May. To discuss advertising rates or editorial questions, call Stephen Mallery, Editor, at 503.683.1916. I think this may be the magazine many of us have been waiting for ... - -- = pbmoss.pacbell.com!gueuze!mal Martin Lodahl Auburn, CA = = More reliable address: malodah at pbmoss.pacbell.com = Return to table of contents
Date: Mon, 08 Feb 1993 08:16:58 From: dduane at kestrel.win.net (Diane Duane) Subject: Irish Ales and other matters Hi all. Re Ulick Stafford's post of the Digest before last: > While ale sales have been falling >to lager (with stout relatively constant) sales of Smithwicks are still >high. I may get in trouble for this, but Smithwicks doesn't taste much like an ale any more. One of the things interfering with this is the excessive carbonation. It now tastes more like a red lager: to me at least. (Granted, this is all very subjective.) What with my husband's and my writing careers, we spend a fair amount of time in the UK, and a lot of it staying in pubs, by preference: and we drink a fair amount of ale, "real" ale by preference, others as desired. The carbonation in them is always minor -- you might get a "petillant" pint, but nothing that fizzes like our present Smithwicks. And again, to me, it simply doesn't taste ale-like. It had never even occurred to me to think of it as an ale until Ulick called it one. > MacArdles is also sold nationwide in bottles and can be got >on draft in local areas. Ulick, where did you find it on draft? We are in and out of Dublin a lot, and hit many of the major pubs in town, and I haven't seen McArdles on draft anyplace. In bottles, yes, and I thank you for reminding me of it. But down here (Wicklow), it's thin on the ground. > In Waterford one can even get Phoenix Ale >in large bottles produced at the small Cherry' brewery there. I never heard of this, and would very much like to try it. Thanks for mentioning it! > Bass is also produced in Belfast and is >an Irish Ale having slightly different taste than British produced >Bass. Mmmm...true, and I dislike both forms of Bass immensely, so probably I am not equipped to critique it. > Unfortunately the virtual monopoly Guinness have on the Irish >market, and indeed on malt and hop industries has meant that there are fewer >small brewers than elsewhere. True, but maybe with the trade barriers down between us and the North, we'll see at least some Hilden coming down here. The Hilden Ale is extremely nice. They are also now brewing a stout (Great Northern, I think it's called). >Another point I would question was Diane's statement that Irish Bud >was 2.5 times stronger than American stuff. While it does taste a >little better (It would be hard not to), it is 4.3% by vol as >against US Bud which is 4.6%. (grin) This one I'm going to blame on my husband. (Truly, though, I think I must have misheard him. He's been going around the house muttering "A *time* and a half stronger, not two and a half times....") I will pop down to the pub and pull the specific gravity and other figures. But certainly it is stronger...one of the local spectator sports is watching the American tourists come through, and see Bud on the pull, and say, "Looka here, Marge, they got Buuuuud here," and proceed to drink as much of it as they would have drunk in front of the TV at home. And then they fall over, and then we stack them up by the wall and put a tarp or something over them until they wake up. Ah, my poor countrymen! Best to everyone, and thanking Ulick again for his advice. D Diane Duane / Kestrel Ridge / Avoca, Co. Wicklow, Ireland Fidonet: 2:263/164 / Ci$: 73200,3112 Internet: dduane at kestrel.win.net "A little science...a little magic...a little chicken soup." Return to table of contents
Date: Mon, 8 Feb 93 12:06:01 MET From: THOMASR at EZRZ1.vmsmail.ethz.ch Subject: homemade wine hello all. my last message seems to have disappeared (come back rob, all is forgiven). However someone else replied to the question of how to make wine, and correctly said that extract + water doesn't make the best wine. However, he then went on to say that you can only get good wine from grapes etc. How wrong! We regularly see recipes for beer that do not conform to the german purity laws, but still taste excellent..... .... possibly because they don't (I'll take an industrial example : most english bitters contain types of sugar, eg mollasses). Well it's the same with wine. Wine making started long before the french made it their own. People have been making blackberry, strawberry, in fact hundreds of NON-grape wines for centuries. It is the "grape wine snobs" and a very powerful french industry which has meant that you can't buy them (a few companies in britain sell them, including Gales - the brewery). True this is a beer forum, and also true there are (sorry is) a digest for wine, but please don't tell people off for asking! If anyone wants info or wants to flame me please email me direct. My wife and I have been both brewing and wine making for quite some years now, and can safely say that both are extremely enjoyable, not least because of the choice of drinks it gives us. Sorry about the length of this rant, and sorry to the HBD - content - purists. but I had to get my word in! Rob Thomas Return to table of contents
Date: Mon, 08 Feb 1993 08:28:43 EST From: babel at vs2.uh.cwru.edu Subject: Info needed on Cincinnati brewpubs I'm headed down to Cincinnati this coming weekend for a business trip and was wondering if there were any good (or bad) brewpubs in the area. I've heard that there is one right across the boarder in Kentucky, but that is the only one that I have heard of. If you know of any in or around the Cincinnati area please send email ASAP. Thanks, Juli - -- "Tell me lover are you trick or treat It's just that I'm all mistrusting when things taste so sweet" Withches' night Witches' night take me by disguise the harvest moon lies I should have dressed up We all do for the sake of sore eyes Witches' night --LadyIce Return to table of contents
Date: Mon, 08 Feb 93 15:50:50 +0200 From: LCNAVOT at WEIZMANN.WEIZMANN.AC.IL Subject: Homebrew Pubs in Boston? A friend will be spending a month in Boston. Could someone recomend a pub or two in Boston, where my he will be able to taste and enjoy homebrewed beer? Thanks Nir Return to table of contents
Date: Mon, 8 Feb 93 9:20:23 EST From: Jim Busch <busch at daacdev1.stx.com> Subject: yeast reuse correction & all grain costs In the last digest I made a somewhat erroneous statement regarding glycogyn reserves in dormant yeast cells. IF the yeast has been treated well and not shocked, then the dormant cells will have plenty of glycogyn reserves afer sitting in the secondary. The cells should wake up fine when fed fresh wort. An important issue is to avoid "yeast shock" which could lead the cells to excrete nasties back into your beer. So, just be careful handling the yeast and it should wake up fine. RE: Costs of all grain brewing. JS has again fired up the snobbery issue and generated a lot of wasted bandwidth in the process. I am sure jack is pleased. What I want to comment on is the response that implied the reason to avoid all grain brewing is cost. It has been noted in this forum before that going all grain does not mean going broke. To sum up the costs needed (a low budget, workable setup): 2 plastic buckets with the holes drilled in one, plus a spigot- $10 used 7 gallon SS kettle - 35-50$. (maybe-corona mill-45$,new) wort chiller, built at home, $25. total- 65-130$ now look at the savings-dry malt extract at my local store was $9/ 3 lbs! So an extract brew would cost between 15-20 for malt, plus hops & yeast, 23-27$/5 gallons. All grain- 8lbs domestic 2 row at 30-50 cents/lb, 3-4$. Add 2-5$ for hops & yeast, $5-9 per 5 gallons. The average homebrewer brews 10-20 times a year. At 10 per year, the extract cost would be between 230 and 270$ per year. At 20, 460-540 per year. The same all grain brewer would spend ~50-90$ at 10 per year, or 100-200 at 20 per year. So the cost would be recovered in 10 batches or so. Not bad, eh?? Jim Busch Return to table of contents
Date: Mon, 8 Feb 1993 12:26:53 -0500 From: Matthias Blumrich <mb at Princeton.EDU> Subject: Brewcap I just bought a BrewCap last weekend and I would like to know if anyone has any advice before I try it (including "you wasted your money" :-) ). One thing I found curious is the warning against dry hopping with pellets since they might clog the blowoff hose. I don't see why this is true. Would it be better to put the pellets in a hop bag which would contain most of them? Any advice is most welcome. - Matt - Return to table of contents
Date: Mon, 8 Feb 93 12:59:00 est From: mtavis at gemini.hyperdesk.com (Mike Tavis) Subject: Increasing Yields and Yeast After all the great advice I received on my "Diminishing Yields" post, I wanted to report back to the digest with my solution. For those who don't recall, my post detailed the drop in my extract rate as a function of the size my grain bed (the bigger the bed, the lower the extract rate). One important piece of information that I left out in my original post was that I use a 5-gallon Rubbermaid cylindrical cooler with slotted copper tubing for my mash/lauter tun. My basic problem was that I wasn't raising the temperature of the grain bed enough during mash out. Someone (sorry I forget the name) with the same setup said he/she adds near boiling water to raise the temperature of the grain bed to the 168-170 range during mash out. Naturally, the amount of mash out water that you add (restricted by how much room is left in the cooler) determines the temperature of the water required. At some point there isn't enough room left in the cooler to raise the temperature even with boiling water. Someone else (sorry again) said they get around this problem by draining the cooler, heating the removed liquid, and adding it back to the lauter tun. I didn't have to resort to draining the cooler. I used the first technique and was able to bring my grain bed up to 167. Previously, I used the sparge water (at 170) to do the mash out. I never took the temperature of the grain bed in my old process, but I would guess that it was in the mid to high 150's. The result of the new process was a much faster sparge as well as an extract rate of 29 pts/lb/gal. Also, the wort come to a boil noticeably faster. I want to thank everybody that contributed their thought and experience to my problem. On another note, I've noticed that certain yeasts strains have characteristic fermentation styles. For example, WYeast 1056 seems to have an very active start and ferment out quickly. WYeast 1007, on the other hand, seems to have a slower drop off and continues to ferment for longer. These observations are based on the highly scientific glugs per second model, but they do seem to be reproducible. I was wondering if there was any real analysis of the fermentation styles of different yeast strains? Thanks again. - -- Mike o o| Michael Tavis, HyperDesk Corporation o o| Suite 300, 2000 West Park Dr., Westboro, MA 01581 ---+ E-mail: mike_t at hyperdesk.com (508) 366-5050 Return to table of contents
Date: Mon, 8 Feb 93 09:20 CST From: arf at ddsw1.mcs.com (Jack Schmidling) Subject: Wine >From: connell at vax.cord.edu >Subject: homemade wine >I have noted with curiosity that while there is discussion of sidelines to beer brewing that shows up on the digest (cider, mead), there is almost no discussion of homemade wines. While HOMEBREW Digest should provde the answer, it does not really explain why cider and mead are discussed far more frequently than wine. My guess is that it has something to do with the universal availability of apple juice and honey vs the regional availability of grapes. The other lies in the beer vs wine drinking statistics of Americans. >I have never read about or experimented with homemade wines, but I have the idea that people just dump concentrate and water in a carboy and add yeast. If that is the standard ritual, it is no wonder few people do it. It hardly is a program for great wine. I have made wine for years and used everything from dandelions and sugar to home grown grapes. With the proper grapes and scientific procedures one can make excellent wines. Using concentrates and your procedure, one has a hard time improving on el cheapo jug wine and concentrates are very expensive. I am sitting on my most recent batch which I described in detail here during the startup stages but there is little to say about it while it sits for months on end. I don't expect the final report in less than ten years and it does not make for great discussions. Furthermore, as good wine requires fresh grapes, it is a seasonal project and I won't start another batch for another year. However, as long as you brought it up.... I do think I learned something from this batch that seems to confirm what has been said before. The wine contains 5 gals of home grown apple juice, and 11 lbs home grown elderberries, grapes and mulberries. I heated the apple juice to 170F and added the fruit and thus sterilized everything. The wine tasted terriffic all through the process but now it is obvious that it is never going to clear properly. I tried gelatine, betonite and now honey and oak chips. The word is that the heat destroys the enzyme that reacts with pectin and the pectin will remain in suspension forever. One can add a pectin destroying enzyme during fermentaion to overcome this evil but I took my chances and seem to have lost. I am going to experiment with a small amount of the wine and the enzyme at the present stage and will report what I learn. Well there you have it. Be back in a year or so, on wine, that is. js Return to table of contents
Date: Mon, 8 Feb 93 12:29:38 CST From: bliss at csrd.uiuc.edu (Brian Bliss) Subject: Re: cold break >I got reacquainted with my grain mill et al last weekend. I brewed up a 10 >gal batch, everything went well. Then I ran it through my counter-flow chiller >and really ZAPPED it with Boulder's near-freezing tap water, causing a great >cold-break. I had a semi-slow moving 1056 Wyeast starter going so I pitched >the two carboys and went to bed. My wife just gave me a copy of Miller's >Complete Handbook, and he seems to go to great lengths to get the wort off >the trub, racking soon after pitching. I left the stuff in there and it >settled out and formed a semi-solid layer on the bottom, even the churning >ferment of the last few days has left it pretty much undististurbed EXCEPT >it seems to have all these little "worm-holes" in it. It's as if during the >active primary ferment some part of the trub has been used by the yeast. > 1)does leaving the cold-break in the primary (a feature of a counter-flow > chiller) harm the beer? Yes. Side-by-side tests done by a reader of this forum concluded that the effects were most objectionable when combined with the lack of a blow-off for the primary. Personally, I feel that I can tell the difference, but one cannot be objective about it without side by side comparisons. I can say that not racking detracts from the clarity of the beer, if not corrected by cold aging or the use of clarifiers. > 2)does it help the yeast, nutrients etc.? Yes. The yeast will feed on the cold break, and leaving the wort on the break will help the yeast get started. Miller claims that after fermentation begins, the hop resins in the break will cause fusel alcohols to be produced. Possible solutions are: a) pitch the yeast, let it sit on the break for a few hours, then rack off into the primary. disadvantage: if you use a quick starting yeast (i.e. Whitbread) and wait too long, it will stir up the trub at the bottom before you have a chance to rack. Also, if the yeast starter has fermented out (post high-krausen), much of the yeast will settle to the bottom and never make it to the primary. b) let the break/trub settle (possibly overnight in a refrigerator) this corrects the disadvantages of (a), but adds to the risk of infection, as the yeast is not pitched immediately after cooling. If you chill the wort below 60F or so you will sufficiently inhibit any foreign bacteria and there is nothing to worry about, assuming you have been sanitary in your procedures. The yeast does not get to initially feed on the trub, but I would argue the advantages of letting it do so, anyway. c) use an immersion chiller and leave the trub in the brew kettle. This saves on time and the number of fermenters required (and the time to clean them). disadvantages: the wort is more prone to foreign bacteria in an open kettle while cooling than when using a counterflow chiller, and you will not be able to see the dividing line between the wort and trub (unless you are using a pyrex boiler $$$). When I use this method I squeeze the hops to get the last little bit out, then transfer this with the remaining trub in the kettle into 1 gallon glass jug(s) and let sit in the fridge. After a day at really cold temps you can recover quite a bit more clear wort (typically .5-1 gallon for me) and either re-boil it and add it to the fermenter, or add it to the next batch. This is mainly a problem when using lots of leaf/plug hops. > 3)is a beer-style thing (lagers no, ales yes) At colder temperatures the yeast will not stir up the sediment on the bottom of the fermenter, so there will be less contact between live yeast and the trub, as in your case. You can still rack the beer off as long as this layer remains undisturbed (though you may have to restart the siphon several times if CO2 keeps stopping it). The cold temps used in conjunction with lager yeasts will usually leave the trub layer intact, but fusel alcohols are much more objectionable in lagers than in ales. > 4)can anybody tell the difference? See (1) > 5)any ideas on what has been taken out of the trub to make the worm-holes? Some clumps of yeast which were trapped in the layer became active and created them as they rose back into solution. Alternatively, they may still be trapped in the layer, but the escaping CO2 bubbles created the holes. bb Return to table of contents
Date: Mon, 08 Feb 93 12:11 From: CCASTELL.UNIX11 at mailsrv2.eldec.com (CCASTELL) Subject: Summer Skiing at Mt. Hood The Northwest division of the Professional Ski Instructors of America (PSIA-NW) holds three summer race camps each summer at Mt. Hood. The dates for this year are: 3-day camp July 23-25 5-day camp July 28-Aug 1 3-day camp July 30-Aug 1 I haven't seen pricing information yet for this year, but it normally costs around $200 (if my memory is correct) for the lessons and lift tickets for a 3-day session. The 5-day sessions are a little more. Food and lodging are up to you. (Some people take a tent and camp out.) Most of you are reading this thinking that I've sent mail to the wrong digest. However, consider the dates: 3-day Summer Race Camp, Mt. Hood July 23-25 AHA National Convention, Portland July 26-30 Oregon Brewers Festival, Portland July 30-Aug 1 Looks like quite a week. Its been on my calendar for quite a while now, and I thought that I would share this opportunity with any skiers out there. The camp is offered to instructors first, and if it doesn't fill up by some date (not announced yet this year), they open up registration to anyone. Email questions/requests for more information directly to me so as not to take up any more space here. Send to: ccastell at eldec.com ignore whatever my mailer says my return address is. (I am a yearly particpant in the race camp, not an organizer, so I have no financial interest in the program other than having spent money on it!) Charlie Return to table of contents
Date: Mon, 8 Feb 93 15:12:24 EST From: orgasm!davevi at uunet.UU.NET (David Van Iderstine) Subject: Re: Extract Brewers, Yeast Attenuation To quote (and beat the proverbial dead horse): >Keeping in mind that lots of people stick with extract because they are lazy, >paranoid or il-informed (blah blah blah) ..... So, Jack, since *YOU* were still an extract brewer right up until the middle of last year, which were you-lazy, paranoid, or ill-informed? Maybe you left one out? If anyone else gets as ticked off as I do with stupid statements like that quoted above, I've been advised our only recourse is to FLOOD the poster with private e-mail stating how we feel. Please do; I am! On a (Thank God!) completely different topic, does anyone have handy a chart of yeast strains attenuitivity (attenuitiveness??). You know, when they'll poop out, assuming perfect aeration, enough starter, etc.? I think it was posted fairly recently, but of course I can find it. Mucho gracias. Dave Van Iderstine =========================================================================== == Dave Van Iderstine Senior Software Engineer == == Xerox Imaging Systems, Inc. == == UUCP: uunet!pharlap!orgasm!davevi davevi at pharlap.com :INTERNET == ==-----------------------------------------------------------------------== == All Extract, Damn Proud! == =========================================================================== Return to table of contents
Date: Mon, 08 Feb 93 12:17 From: CCASTELL.UNIX11 at mailsrv2.eldec.com (CCASTELL) Subject: Slow WYeast Growth I have packet of Vintner's Choice (WYeast) Champagne yeast from last September. I've had it in the refrigerator until I could find suitable apple juice to make this year's cider. (Actually, I've had a tough time finding suitable juice this year, so I guess I just go with what I have.) I whacked the pouch the evening of 2-2. By morning on 2-3, there was SOME growth. By morning of 2-4, it was where it normally would have been after 12 hours. Now on 2-8, it has hardly changed since 2-4. The envelope is not tight at all, and I am in no fear of going home and finding yeast all over the walls of my kitchen. Prior experience with beer and champagne WYeast has been similar to what has been reported here, namely that the activity seemed strong in spite of an extra month or three. Since nothing has happened lately, should I: 1) assume the nutrient isn't nutritious, and pour it into some starter? or 2) toss the packet, not wanting to throw good cider after bad yeast Charlie ccastell at eldec.com Return to table of contents
Date: Mon, 8 Feb 93 14:42:28 CST From: gdmcconn at mspe5.b11.ingr.com (Guy McConnell) Subject: Irish Red Ale (again) Ulick Stafford writes: > Guy McConnell reproduces a blurb from Coor's about Killian's Red. > Much of it is true other than the fact that it paints Old Adolphus > and family as being something other than Ogres. Well, I didn't reproduce anything except nuggets from a fading memory. I don't even recall for sure where I came by this information but it wasn't from Coors directly. I called Coors a "kindhearted" megabrewer, an oxymoron if ever there was one. I even put in the quote marks as above. I mentioned the fact that Coors had removed virtually all of the beer's character and decided that it should be a lager (I'm still not sure about that part - *was* it an ale when it was brewed in Ireland?). I also mentioned that micros and homebrewers were responsible for reviving the Irish Red Ale style, much like porter. I don't credit Coors with doing anything except making Killian's fit in the American mass market by sucking the very life out of it. That is why I would violently oppose Budweiser getting their hands on the real Budvar. The one saving grace of Coors is that they are the only megabrewer still producing a decent, all barley beer, albeit seasonally, in Winterfest. We couldn't even get that here in Huntsville this year. I don't count Miller's "Special Reserve" because there is not a dime's worth of difference between that and "Genuine Draft" in spite of the "all-barley" hoopla. How anyone could use all barley and produce a beer so lacking in any sort of beer character is beyond me. I guess I expected too much. Anyway, I was being quite sarcastic in my treatment of Coors' motives and if I painted them as "less than Ogres" it was not intentional. By the way Ulick, I found your posts on the state of Irish brewing most enlightening. It is a shame that the producer of so fine a beer as Guinness Stout would use such tactics to keep a stranglehold on the market. - -- Guy McConnell gdmcconn at mspe5.b11.ingr.com "All I need is a pint a day" Return to table of contents
Date: Mon, 8 Feb 93 15:25 CST From: korz at iepubj.att.com Subject: Sanitizing counterflow chillers/All-grain snobs DLAMARPL writes: >Several sources indicate the hazards of using alkaline solutions (e.g. >chlorine) to sanitize copper. None I have seen, however, suggest alternatives >other than boiling. What are effective sanitizing agents for equipment that >cannot be boiled (e.g. counterflow wort chillers)? Ahh, but you *can* sanitize a counterflow chiller with boiling water. Boil up some water and siphon it through the chiller with the cooling water turned off. ************ Regarding all-grain snobbishness, I'd like to say that indeed, it's a stupid thread and those who still care about it should all take it off-line. But before we do, I want to get in my two pence ;^): I spoke with Jack yesterday at the CBS US Ale Fest at Goose Island and it appears that he has gotten lots of private email regarding his post. I feel that this is the best course of action when you disagree with a person's post in the HBD. Let's not all overreact here. I agree that Jack's post took an abrasive tone but so did Greg's. Are we counting wins and losses here? Let's not let our egos get in the way of brewing beer. Let's not take every post as some kind of life-threatening situation. It's not. Personally, lately I've been so busy these days (I've recently opened a homebrew supply store *in addition to* working at AT&T) that it's hard to find the time to brew an extract batch let alone the time to brew all-grain, so virtually all my recent competition entries have been extract beers. In fact, my last 12 prize-winners were all extract + specialty grain beers. It just goes to show that good beer *can* be brewed without mashing. Al. Return to table of contents
Date: Mon, 8 Feb 93 15:30 CST From: korz at iepubj.att.com Subject: Re: recirculation FAQ Chris writes: >Since many topics come up in cyclical manner it would be nice if they could be >answered in a FAQ format. And since some topics have more than one accepted >answer the FAQs should try to show all sides of an issue. > >So to get the ball rolling here is an example: > >FAQ #0000-000: > >[Note that 0000 indicates the number of the FAQ and -000 indicates its version. > The version mechanism allows mistakes and inaccuracies to be corrected and >newer information to be included in newer versions of the FAQ.] Sounds good, but: 1) where will they be kept -- I, for example, cannot FTP anything from any of my machines and I've had great difficulty getting stuff from the archives, and 2) "0000" is not very informative -- there would of course have to be an index, but who would maintain this? >FAQ #0001-01: Recirculation: What is it, and should I do it? > >Recirculation is a practice employed in the lautering of mashed grains where >the turbid sweet wort is collected, as it is runoff, and recirculated through >the grain bed until the runoff becomes clear. > >Most sources of homebrewing information will tell you that you should employ >the practice of recirculation to avoid significant amounts of chaff in the > [etc.] I have a few comments, not actually mine, but they've been posted here, so I'm recirculating (pun intended) them. Micah wrote: > There have been some questions about both head retention (beer) >and chill haze problems. I think that a large portion of the problem >is a lack of lipids in the wort. > Lipids are very important elements for proper beer stability. >Lipids are unsaturated fatty acids, this means that they are available >to form new bonds with other elements of the wort. Although only a few >ppm of lipids are present in finished wort, they can have far reaching >effects on factors such as yeast viability, ester formation, gushing >and flavour staling. Small variations in brewhouse procedure can produce >large variations in wort lipids. Lipids adhere to trub particles ( trub >contains up to 50% lipids) and to filter materials. Spent grains are high >in lipids. A turbid top runoff from the lauter tun can contain 5 times, >and even 40 times as many lipids as the clear wort runoff from the same >mash. Also yeast will autolyze if it does not receive small amounts of >ergosterol or unsaturated lipids. > North American grown barley malt contains very small amounts of >free fatty acids (3.2-3.5 mg\l) opposed to european malts (18-26 mg\l). >Insufficient fatty acid levels can result in high esters in the >finished product and can also be responsible for gushing problems in the >finished beer. The addition of unsaturated fatty acids can cure gushing. >While the addition of saturated fatty acids tends to increase gushing. >The content of unsaturated fatty acids has a strong influence on the >formation of fermentation volitiles, notably the acetate esters. A wort >that has been stripped of lipids could produce a beer too high in esters. > I beleive that a shortage of lipids may be a problem that >homebrewers encounter because of their obsession with mash extraction >yields. This need to eke out every trace of sugar from a mash, leads home >brewers to practice wort recycling and or flaufing. These can be risky >sparging techniques with regard to hot side aeration as well as stripping >lipids from the wort. Recycling is the collecting of the wort as it runs >out of the lauter tun and pouring it back over the grain bed. Many brewers >claim that recycling should be done to settle the grain bed. Flaufing is >the collecting of the wort as it runs out of the lauter tun, boiling it >and then returning it to the top of the grain bed. These practices not >only give oppurtunity for hot oxygen and wort reactions, but also strip >out fatty acids (which North American grown malts are low in) that are >essential for proper yeast nutrition. > I have long felt that mash recycling was a bad thing, in that >it tends to remove a lot of large particulate matter that would otherwise >be in the boil. I feel that these particles ( husks and grits mostly) >provide a place for proteins to clump onto during the boil and then >settle out more effectively in cooling. > I have observed much clearer finished wort (cooled) from my >boils, when the mashes were conducted with no recycling of wort than >from those of other brewers whose worts were made by recycling the mash. > > > Micah Millspaw 3/31/92 > > > A lack of sufficient lipids will cause the finshed beer to have >stability problems one of which is head retention. Above it was mentioned >that additions of lipids could cure gushing, I would make it clear that >gushing is a head retention problem, and that it causes acn be the same >as those responsable for no head formation at all. > > Micah Millspaw 6/3/92 Note that I asked Micah (in private email, via Bob Jones) to give me sources for more info on this "need for lipids," but I guess he was (understandably) too busy with his new venture. It's not that I don't trust Micah, but when someone introduces something so different from what I've read before (why haven't I read *something* about this before?), I have a tendancy to doubt first and read up on it. Can anyone (George? John? Mike?) substantiate this "need for lipids?" Darryl wrote: >> From: Phillip Seitz <0004531571 at mcimail.com> >> Since this is a friendly forum I'll ask what seems to me to be >> the obvious: why is extensive recirculation any different from >> sparging with very large amounts of water? My question refers to > >Because the pH of the wort is low, recirculation will not remove >tannins. But when you sparge, you may, depending on the ions present in >your water. This is the reason that Dave Miller suggests adding a bit >of lactic acid to your sparge water. > >> the extraction of tannins and the dreaded "teabag" effect (which >> I have been able to create in the privacy of my own home!). It >> seems to me that either way there will be a fair amount of rinsing >> going on. Based on George Fix's posting yesterday, this > >The idea of recirculation is not to rinse, but to give the grain bed a >chance to form, and thus hold back all of the solid material. > >It usually takes me about 20 minutes, or 5 gallons, of recirculation on >a 15 gallon batch. This through a Coleman 80 quart picnic cooler with >a slotted copper pipe manifold. > >> recirculation DOES result in some tannic/husk extraction. Well, >> how much is too much (recirculation, that is)? >My motto is to recirculate until the wort is as clear as I want my beer. > >> I suppose this could also lead to questions about decoction mashing, >> since we're not supposed to boil our grains either. > >Yes, it certainly could. But the decoct is also quite acidic, so even >boiling in that circumstance does not extract substantial tannins. >Those that are extracted may be conglommerated and precipitate out with >the extra proteins that are also extracted, during the kettle boil. > > --Darryl Richman (to be continued) Al. Return to table of contents
Date: 08 Feb 1993 20:32:43 -0500 (EST) From: WESTEMEIER at delphi.com Subject: Extracts knobs / overkill On the subject of extract v. all-grain, I can't resist adding a data point. I've been a homebrewer for five years, all-grain for three. I have a friend who has been an extract/adjunct grain brewer for 15 years. I would give a lot to brew beers as good and as consistently as he does. It's practice and technique, I think, more than ingredients and method, that make for success. On another topic, I'd like to thank Alan "Overkill" Edwards for his tables, charts, curves, and assorted efforts to put nice, neat numbers to our squishy, seat-of-the-pants approximations. I certainly appreciate it, and so do the other members of my local club. Ed Westemeier, Cincinnati OH <<westemeier at delphi.com>> Member, Bloatarian Brewing League Return to table of contents
Date: Mon, 8 Feb 1993 20:48 EDT From: Kieran O'Connor <OCONNOR%SNYCORVA.bitnet at CUNYVM.CUNY.EDU> Subject: I need info on a research paper! Hi all, I am working on a research paper for my MA in History. I sleazed a coupling of brewing and research and managed to convince my professor that a paper on the consolidation of the brewing idustry would be a good topic. What I'd like to write about is how the United States, chiefly through prohibition, changed form a country with many breweries to one with a few super regionals and national breweries. I'd also like to look into the resurgence of micro-brewed and homebrewed beers as a result of the bland offerings of the commercial giants. I guess what i could use is some help in some sources. i can certainly search the New York Times index, and I've done some searching for texts. Any thoughts on places to look? I will be sending letters to the Federal Bureau of Alcohol, Tobacco and Firearms (hopefully they wont haul me away on COPS) :-(. Could folks help me with addresses for the big breweries? Or other places out there which might have a treasure trove of material? Anything at UC Davis? If anyone is initerested--I'll gladly upload a copy of the finished product--as long as I earn a decent grade ;-). Thanks for all the help--could you reply via personal mail or via this forum with the header of "BREW PAPER". It makes life a lot easier. Thanks in advance. Kieran O'Connor E-Mail Addresses: Bitnet: oconnor at snycorva Internet: oconnor at snycorva.cortland.edu Return to table of contents
Date: Mon, 8 Feb 93 22:09:07 EST From: dcheck77 at Jade.Tufts.EDU Subject: Shipping Homebrewed Beer? I am almost considering myself an amateur brewer at this point, having brewed two batches so far (both coming out surprisingly excellent -- luck?). I'm brewing up in the Boston area (Framingham specifically), and I was looking to send (heh heh) some of my beer to Santa Rosa, CA. a) Is this legal? b) Possible? c) Advisable? If anybody wants to laugh at me directly, or possibly enlighten me as to some great news about my shipment dilemma, please do. Thanks much, _-_Dan Checkoway Student of Mechanical Engineering Tufts University Medford, MA 02155 email : dcheck77 at jade.tufts.edu "Up here in Boston we call it Frappe..." Return to table of contents
Date: 9 Feb 93 03:37:53 GMT From: SynCAccT at slims.attmail.com Subject: Whole Hops In HBD1071 I posted a comment regarding leaf hops in reference to the loose hops I was purchasing from Freshops (not named in the post) and information I received indicating that they were sweep-ups because they were loose petals instead of whole cones. I received this email from Glenn Tinseth and am posting it with his permission. I will continue to use Freshops with no reservations tnks to Glenn's legwork. I continue to be baffled as to why some brewers insist that their methods or opinions are exclusive. I have a hard enough time with life without this kind of crap in my hobby.....Glenn Anderson gande at slims.attmail.com USUAL DISCLAIMERS....... *************************************************************** To: internet!attmail!slims!gande Glenn, First of all let me compliment you on your name. I am a not yet prominent west coast hop retailer (The Hop Source) who deals exclusively in whole hops, imported and domestic. In a recent post you mentioned some alarming info about a "west coast hop vender" that you had received from the salesperson who sold you some Saaz hop plugs. I am a competitor with Dave Wills (Freshops) if that's who you mean, and would benefit if his business diminished. That being said let me tell you the following. What you were told is complete and utter bunk, Freshops buys whole bales from Hopunion and repackages them in ziplock baggies. The floor is never involved except as a place for the person filling the bags to rest his/her weary feet. I suspect that the person who told you this does not know what they're talking about and may have a grudge against Dave although I can't imagine why. I really did check into this and representatives from Morris Hanbury, Hopunion, and GW Kent all said virtually the same thing, that the person who told you this is misinformed and also not a very nice person :-O Whether or not a hop cone breaks into a bunch of loose bracts is dependent on many factors including the care the grower takes in harvest and drying, the subsequent handling received at the hands of the broker, and even the variety and weather conditions. I get hops directly from the UK (actually they are the hops that go into the 1/2 oz plugs) and they range from quite broken up to pretty whole depending on the lot and the variety. In any event there is *no* loss in brewing value when a hop breaks into pieces although it is definitely less aethetically pleasing ;^) Since you didn't mention the name of the hop vendor or the salesperson, I decided to e-mail this, if you want you can post all or part. I *am* very interested in knowing who said this so if you are OK with it let me know. There is no room for this kind of crap in this industry!! Wow that feels lots better getting this off my chest. Thanks. Take care, Glenn Tinseth tinsethg at ucs.orst.edu 503-873-2879 Return to table of contents
Date: Tue, 9 Feb 1993 01:15:53 -0800 (PST) From: David Schleef <dschleef at lclark.edu> Subject: Paulaner Hefe-Weizen The yeast in the bottom of imported and domestic bottles of Paulaner is very hard to re-propogate since all Hefeweizen at Paulaner is pasturized. This piece of information I know as a fact, since working on the bottling line (and in the brewhouse) was part of an one-month internship I did last March at Paulaner. I donot know, however, the exact difference between the yeast used for bottling and the yeast used in the primary ferment (never thought to ask) but I would imagine that the bottling yeast is a special bottom fermenting strain and the primary yeast is a top fermenting weizen strain. David Schleef dschleef at lclark.edu Return to table of contents
Date: Tue, 09 Feb 93 07:59:37 EST From: thutt <thutt at MAIL.CASI.NASA.GOV> Subject: Garumph. Enough with 'real brewers'! In regards to the vapid discussion about 'real brewers', let me pose the following questions. o Do you drive? o Do you know how to set the points for your car? o Can you overhaul your engine? o Do you know how to do brake work? o Can you use Bondo? (have you tasted it?) (can you get the catalyst off your hands? if so, how?) If you have not answered 'yes' to all these questions, you are obviously an amatuer driver, and a danger to those of use who CAN, and DO, all of these things. Please stay off the road. My point? Get a life people. This is getting to be more stupid than alt.sex.wanted. There are different levels of interests for hobbies. (ex: My mother collects porcelain dolls. Other people collect barbies. Both collect dolls, but neither is better nor worse than the other). You began making beer because of some personal reason, for your own consumption. Quit comparing yourself to other people. If you are happy with the beer you make, then drink it, and share your experiences. If you are not happy with your beer, give it away, tell us what you did wrong, ask for advice on how to fix it, and share your experiences. The discussion on bees was much more entertaining that this crap. Taylor Hutt Championing worldwide usage of Oberon-2! Return to table of contents
End of HOMEBREW Digest #1074, 02/10/93