HOMEBREW Digest #2311 Wednesday, January 15 1997

Digest #2310 Digest #2312
		(formerly Volume 02 : Number 031)



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Contents:
  re:  Wyeast London ale yeasts
  Air filters
  Wyeast London Strains
  Wort & Air
  Re:Using kegs as sparage water containers
  cloudy beer
  Re: Maple syrup
  [No Subject Provided By Sender]
  Use and Storage of Bulk LME (Art McGregor)
  #1338 at low temp (Dave Whitman)
  RE: Brew Your Own magazine
  starter recipe
  Continuous Fermenters/O2
  Re: Homebrew Digest V2 #28
  Re: Homebrew Digest V2 #29
  Re: Homebrew Digest V2 #30
  Deschutes Beer  (George De Piro)
  RE: Boiing the wort the day after mashing (George De Piro)
  RE: Long mash time/trub removal/diacetyl in ESB (G. De Piro)
  Re: Air filter - The Final Answer (Eric Peters)
  re. long mash times and off odors
  What's the limit
  Decocting US malts/lager pitching
  Propane Cookers
  Special-B vs Belgian Aromatic
  Re: Long mash time causes "off" odors?
  Mead?


---------------------------------------------------------------------- Date: Tue, 14 Jan 1997 21:50:56 -0500 From: Phil Olson <bocefuss at concentric.net> Subject: re: Wyeast London ale yeasts Chuck, I finish a batch of ESB a few weeks ago and now (actually tonight) I'm sampling my first bottle. Here's the recipe I used, 12 lbs. British pale ale malt 1.5 lbs. Light carapils (40L) 1 lb. Medium crystal (80L) 2.5 oz. Fuggles, whole (3.2% AA) 0.3 oz. Kent Goldings (11.0% AA) 1/3 oz. Burton water salts Wyeast #1968 (London ESB) I'm usually a little heavy-handed on the grain bill, so you might add 10% to it. Mash temp was a bit low, because the cooler and grain were cold. I ran 170F water thru mash three times to achive a final temp of 154F. Mash time was about 45-60 minutes. Slow, 1 hour sparge, yielded about 6 gallons. Boil for 60 min, add Fuggles at hot break (about 15 min). Then Goldings and irish moss during last 15 min of boil. Salts went in with the mash water. Quick chill with coils (about 1 hr). Transfer to fermenter and add 1968 yeast. Put on air lock and store at 62F. Rack to secondary in 5-7 days, once fermatation out gassing reduced to a trickle. (Sometimes I get a yeast pack that doesn't start kicking for 2 maybe 3 days, so look for minimal out gassing). Bottled about a week later (I use the krausen, not sugar). Let set at 62F for 3 or 4 weeks....and walla, ESB! OG: 1.055 FG: na My first tasting: - -very dry tasting, but not extremely bitter - -no malty taste - -nice head retention - -med dark brown color - -minor hoppy nose - -dry finish - -no noticable off-tastes - -a bit thin in body Overall: very good :) Phil Olson "Assimilate this!" Worf "An engineer who is surrounded by machines is never lonely..." Dilbert Principle Phil Olson Delphi-Saginaw Steering Systems Advanced Product Center Saginaw, MI 517-757-3318 web site: http://www.concentric.net/~Bocefuss/Index.html Email: bocefuss at concentric.net Return to table of contents
Date: Tue, 14 Jan 1997 18:20:23 -0800 From: Lee Bollard <leeb at iea.com> Subject: Air filters In response to Kieth Royster's air filter post, I agree that this hobby has gone overboard in it's anal-retentive ways. But this is relative to each brewer's expertise. What may seem way overboard to me (highly technical water chemistry analysis discussions) may be of great value to others who have solved the problems I still deal with in my brewing. That said, I'm a proponent of inline air filters. Inline air filters may do more than sanitize air. Perhaps the strong rubber smell from many aquarium pumps is something you would like to keep out of your beer? A homemade filter with activated charcoal between two pieces of cotton may help... And, after all, when you're aerating you are dealing with wort at it's most volatile stage. Wort is most sensitive to infection right after being cooled and before fermenting. Just because Keith hasn't had any problems doesn't mean others won't... Everyone told me that shaking the carboy or using a venturi tube to aerate wort and pitch larger amounts of yeast would help my incomplete fermentations, but until I started aerating with the aquarium pump I had no luck. It was like night and day. Now, the small medical filters fit right on vinyl tubing nicely and are easy to use. You can order the .22 micron medical filters from Brewers Resource (part # SP-86 $3.90 ea. 800-827-3983). These are actually Sarstedt brand acetate "syringe filters" (Sarstedt part 83.1826.001) and may also be available at your local medical supply. In my opinion the filters are economical and practicle. Reusable, BTW. One caveat: Don't let the filter material get wet or it will clog. What I do is connect the filter to the pump, then turn on pump, then connect the freshly sanitized airstone tubing to the filter. That way no water can seep into the filter. Now, if I had it all to do over again I would probably buy a regulator and airstone from Liquidbread and O2 canisters from the home center. I hear you need only 30 seconds of pure O2 to aerate your wort... no filtering needed, quicker... - -- - -------- Lee Bollard leeb at iea.com -------- Return to table of contents
Date: Tue, 14 Jan 1997 19:50:15 -0800 From: Chris Carolan <spiralc at ix.netcom.com> Subject: Wyeast London Strains Tom Gaskell discusses Wyeast London strains >From what I have heard about Ringwood yeast, I am beginning to believe >that London Special (1968) is a relative of Ringwood. They both have >fairly low attenuation, produce diacetyl, flocculate like mad, and >need plenty of oxygen. In each case, I think Ringwood takes these >behaviors to the extreme, while 1968 is the less radical step-child. >I actually saw a brewpub, which uses Ringwood, place submersible pumps >into their open fermenters, and rouse and aerate the yeast by pumping >the green beer up a tube resembling a racking cane, which sprayed the >beer in a fan pattern back down into the rest of the beer in the >fermenter. The beer was sprayed with enough force to raise one hell >of a head, and to entrain a lot of air into the brew. Wheeler's "Brew Your Own Real Ale" discusses what he calls "Northern Style" English ale yeast, also referred to as "Yorkshire" yeast. He terms these yeast strains inappropriate for home brewing because of their need for additional aeration and/or rousing. Ringwood yeast originated in an old Yorkshire brewery. Wheeler also describes how the old "Yorkshire squares" stone fermenters actually accomplished an effective rousing through their design. Wyeast 1968 and 1318 seem to be among this family of yeast strains, although as Tom notes,. not as severe as Ringwood in their Yorkshire characteristics. Yeast Labs A09 "English" is allegedly Ringwood. My experience with London III, 1318, was a sluggish two week fermentation and less than optimal attenuation. I've since switched to a pure O2 aeration setup. 1318 has a higher listed temp range (to 74f) than most Wyeast strains. A while back on r.c.b. a number of brewers compared notes. Those who used the yeast at the lower ends of the range were disappointed with its performance, while those who brewed with it above 70 degrees had no complaints of sluggishness. I plan to try it again this summer as my warm weather yeast, when I brew in the 71-74 degree range. Chris Return to table of contents
Date: Tue, 14 Jan 1997 21:18:51 -0700 From: Vince <VJMitchell at asu.edu> Subject: Wort & Air Hello all, Where might i find these stones mention with the aquarium pumps? Are they the same.....as an air stone used w/ aquariums? Vince Mitchell VJMitchell at asu.edu Return to table of contents
Date: Tue, 14 Jan 1997 22:02:10 -0600 From: dcigary at txdirect.net (Gary Eckhardt) Subject: Re:Using kegs as sparage water containers Mack Huntress writes: >I've been using a keg for sparge water for the past 2 batches and love it. >You don't have to worry about having a height difference and the sparge >rate is MUCH more controllable. With a gravity system you lose a lot of >head pressure towards the end of the sparge but with a pressurized keg you >can keep the flow rate constant or adjust it to whatever you want. The >heated air in the keg actually helps because you end up using less Co2 to >pump the water. Hi all, thanks for all the great comments on my posting. Everyone seemed to think this was a great idea and I thought I'd post my experiences with it for future reference: I tried this idea since I posted the original question on my first all-grain and test-run of my mashtun, and I have to tell you it sure made things easy. A few points: 1) One problem was tubing sizes: My keg fittings are all 1/4 inch ID, and the sparage arm assembly has a fitting for 3/8 inch ID. Solved this by a brass splice. I could have used a hose clamp to hold the 1/4 inch tubing on top of the inlet to the sparage arm, but it seemed rather risky. 2) I originally bought a few nylon inline valves to control the flow, but it was readily apparent after a test run with the system that I had to have a better valve on the line from the keg to the sparage arm, as I ended up rather wet. Bought a 1/4in ID brass needle valve with compression fittings, and it works great. It does get a little warm while sparaging so I have to use hot pads to adjust the flow. 3) Since this was my first all-grain batch, I didn't know what to expect as to how much sparage water to have. About 3/4 way through my sparage, I ran out of water, so I had to scramble with pots on the stove and in the microwave to come up with a few more gallons to finish the sparage. I'll have a backup pot on the stove next time. 4) I wrapped the keg in a blanket, and it seemed to keep it's temperature through the sparage, but I really couldn't tell as I didn't check it closely. Next time I'll check. All in all, it was an interesting first all-grain batch, and this system made things much easier than what I've heard. (I've done one other all grain batch while helping a friend and it was rather painful). - ---------------------------+---------------------------------------------- Gary Eckhardt | "in this day & age...music performed by Database Consultants, Inc. | humans...hum!?" --wilde silas tomkyn dcigary at txdirect.net | R,DW,HAHB! gary_eckhardt at realworld.com| R^3 = "Real World. Real Smart. Real Quick." (210)344-6566 | http://www.realworld.com/ Return to table of contents
Date: Wed, 15 Jan 1997 01:32:13 -0500 From: "Christopher D. Hutton" <bachstar at erols.com> Subject: cloudy beer I recently bottled my first batch ( a pilsner). It was very cloudy? Is this natural? Please e-mail any responses. Thanx. Chris Return to table of contents
Date: Wed, 15 Jan 1997 00:21:44 -0800 From: Jeremy Bergsman <jeremybb at leland.stanford.edu> Subject: Re: Maple syrup "W. Scott Snyder" <w-snyder at students.uiuc.edu> asks about maple syrup: > Anyone have any pointers on adding Maple Syrup to your brew? I'm > thinking specifically of a Maple Porter (ala Pete's Wicked). How much > syrup to use? Should I add it late to the boil or does it matter? Is > there a specific type of syrup to use and/or avoid? Not a complete answer but here's a data point. I made a maple rye beer, basically a brewpub blonde ale designed to show off the maple and the rye (~40%). I used 1/3 of a gallon of real maple syrup in 9 gallons of beer. I was disappointed in the result, this was just over threshold to taste the maple. I was afraid of cidery tastes from too little FAN if I added too much. This is >10% of the fermentables as it is so I'm not sure how much maple one could add safely and whether this would be tasteable in a flavorful beer like porter. I certainly wouldn't try this on an extract beer. - -- Jeremy Bergsman jeremybb at leland.stanford.edu http://www-leland.stanford.edu/~jeremybb Return to table of contents
Date: Wed, 15 Jan 97 04:24 CST From: postmaster at swpe06.sw.lucent.com Subject: [No Subject Provided By Sender] >From postmaster Wed Jan 15 04:24:27 1997 Subject: smtp mail failed Content-Type: text Content-Length: 2499 Your mail to swen01.lucent.com is undeliverable. - ---------- diagnosis ---------- <<< 554 Transaction failed -- I/O error - ---------- unsent mail ---------- >From uucp Wed Jan 15 04:24 CST 1997 remote from swpe06 >From homebrew Tue Jan 14 19:43:25 0700 1997 remote from dionysus.aob.org Received: from dionysus.aob.org by swpe06.sw.lucent.com; Wed, 15 Jan 1997 04:24 CST Received: by ihgp0.ih.lucent.com (SMI-8.6/EMS-L sol2) id EAA18352; Wed, 15 Jan 1997 04:32:03 -0600 Received: from alig1.firewall.lucent.com by ihgp0.ih.lucent.com (SMI-8.6/EMS-L sol2) id EAA18341; Wed, 15 Jan 1997 04:31:57 -0600 Received: by alig1.firewall.lucent.com (SMI-8.6/EMS-L sol2) id FAA18159; Wed, 15 Jan 1997 05:37:03 -0500 Received: by algw1.lucent.com; Wed Jan 15 05:29 EST 1997 Received: (from dionysus at localhost) by dionysus.aob.org (8.7.5/8.7.3) id TAA05224 for homebrew-digest-outgoing; Tue, 14 Jan 1997 19:43:25 -0700 (MST) Date: Tue, 14 Jan 1997 19:43:25 -0700 (MST) Message-Id: <199701150243.TAA05224 at dionysus.aob.org> X-Authentication-Warning: dionysus.aob.org: dionysus set sender to owner-homebrew-digest at dionysus.aob.org using -f From: owner-homebrew-digest at dionysus.aob.org (Homebrew Digest) To: homebrew-digest at dionysus.aob.org Subject: Homebrew Digest V2 #30 Reply-To: homebrew at dionysus.aob.org Sender: owner-homebrew-digest at dionysus.aob.org Errors-To: owner-homebrew-digest at dionysus.aob.org Precedence: bulk Content-Type: text Content-Length: 40389 Homebrew Digest Tuesday, January 14 1997 Volume 02 : Number 030 Procedures: To send a message to the digest, send it to <homebrew at aob.org> To subscribe to the digest, send a message to <majordomo at aob.org> with the text "subscribe homebrew-digest" in the body. To unsubscribe from the digest, send a message to <majordomo at aob.org> with the text "unsubscribe homebrew-digest <your email address>" in the body. If you are having difficulty unsubscribing, send a message to <majordomo at aob.org> with the text "who homebrew-digest" in the body. This will return a list of all subscribers. Search this list for your email address, and include it, exactly as it appears (including any other text) in your unsubscribe message. If you are still having difficulty, send a message to <admin at softsolut.com> with a description of your message, and we shall attempt to resolve the problem. 1 Tannin Extraction During Decoction Mash (Art McGregor) 2 re: Heating Mash 3 RE: Sunbeam (and Bianca) hops / Don Van Valkenburg Return to table of contents
Date: Tue, 14 Jan 1997 16:28:37 -0500 (EST) From: Art McGregor <mcgregap at acq.osd.mil> Subject: Use and Storage of Bulk LME (Art McGregor) Howdy Homebrewers! I saw some large containers of LME the other day at the beer store, and was wondering about how to use and store them. The containers are 33 lbs or equivalent of ten 3.3 lb cans. Presumably you would use 6.6-10.0 lbs (2-3 cans) of LME for a 5 gallon batch. How should you store the remaining 23-26 lbs of LME? 1) Keep in original plastic container at room temp 2) Keep original container in refrigerator 3) Transfer to lager mason jars and them put in refrigerator If it was kept in the large original container and put in refrigerator, I would think it would be quite hard to use (very thick and slow pouring) for the next 5 gallon batch. Anybody with experience with these, or any comments? The potential cost saving of this bulk LME purchase make this more attractive than purchase of other quantity/bulk extract :^) ... but it may be to messy to fool with :^( TIA! Hoppy Brewing, Art McGregor (Northern Virginia) (day: mcgregap at acq.osd.mil night: apmcgregor at nmaa.org) Return to table of contents
Date: Wed, 15 Jan 1997 07:52:20 -0500 From: Dave Whitman <dwhitman at rohmhaas.com> Subject: #1338 at low temp (Dave Whitman) In HBD#29, George De Piro <George_De_Piro at berlex.com> asks about using Wyeast #1338 at low temperatures: >Just a quick observation about Wyeast 1338, the "European Ale" strain. > I currently have it fermenting at 56F (13.3C). It seems to be doing > well; the Kraeusen is a bit smaller than expected, but otherwise > chugging along. > > I was wondering if anybody else has tried to push the lower > temperature limit of this yeast? I believe the Wyeast sheet says that > it's lower limit is 60F (15.6C), but that doesn't seem to be true. George, we must be sharing the same weather. I've got an alt fermenting right now using #1338, also at ambient temp of 56F, despite sitting right next to my furnace. Seems to be fermmenting fine - about 2" of krausen, and a heavenly smell coming out of the airlock. We should compare notes after our batches settle down. I'm less worried about high terminal gravity than whether the low temperature will suppress ester formation. - --- Dave Whitman dwhitman at rohmhaas.com "The opinions expressed are those of the author, and not Rohm and Haas Co." Return to table of contents
Date: Wed, 15 Jan 1997 06:05:46 -0600 From: dcigary at txdirect.net (Gary Eckhardt) Subject: RE: Brew Your Own magazine I've been reading BYO for about a year, and it seems like a good magazine for a novice brewer (which, after a year, I guess I still am). The articles are interesting, and informative for someone who's just getting into homebrewing, like articles on brewing in a small space, what hops do for you, etc. I've tried reading the "Z" magazine, and although I'm sure it's packed with information, it's just too dang rough to read. Sorta like reading a mathmatical proof book: I'm sure that some people find it riveting and exciting, but I don't. Haven't picked up Brewing Techniques yet, but I understand it's very good. As always, IMHO. - ---------------------------+---------------------------------------------- Gary Eckhardt | "in this day & age...music performed by Database Consultants, Inc. | humans...hum!?" --wilde silas tomkyn dcigary at txdirect.net | R,DW,HAHB! gary_eckhardt at realworld.com| R^3 = "Real World. Real Smart. Real Quick." (210)344-6566 | http://www.realworld.com/ Return to table of contents
Date: Wed, 15 Jan 1997 08:20:23 -0500 From: Dave Whitman <dwhitman at rohmhaas.com> Subject: starter recipe In HBD#30, John Chang asks for a recipe for making starters from DME. I use a standard recipe that I scale up or down to make a given amount of wort. All the ingredients are based on the volume of wort I want to end up with. water to make desired volume 10% DME based on water weight 0.3% yeast energizer based on water weight (diammonium phosphate) 0.3% yeast extract based on water weight (Marmite) This makes a starter with SG about 1.040. Example: to make 200 ml of starter wort, I'd put 200 ml of water into my container, then add 20 g of DME, 0.6 g of DAP and 0.6 g of Marmite. To use immediately, I'd boil 20 minutes, then cool. To keep, I'd pressure can the mixture for 20 minutes at 15 psi. For years, I used just water and DME with no problems, but the starters were always pretty sluggish, never developing a real krausen. I'm pretty sure that many DME's are cut with some simple sugar to make them more tractable during spray drying. This leaves them deficient in free amino nitrogen and other nutrients that the yeast need. The DAP and yeast extract are optional ingredients that correct for this deficiency. I have much more vigorous starters since adding those two ingredients. I normally don't bother hopping my starters, but don't see any reason why it would hurt them to do so, and might help suppress infection. - --- Dave Whitman dwhitman at rohmhaas.com "The opinions expressed are those of the author, and not Rohm and Haas Co." Return to table of contents
Date: Wed, 15 Jan 1997 13:34:26 -0500 From: "A. J. deLange" <ajdel at mindspring.com> Subject: Continuous Fermenters/O2 Ken Sullivan asked about continuosus fermenters. It's a promising idea but don't rush to the patent office. They've been there already. While continuous fermenters aren't that popular in this country I understand that the technology is fairly common in Asia. The MBAA's "The Practical Brewer" (Ed. W.A. Hardwick) has a little on this and "Handbook of Brewing", edited by the same guy, Marcel Dekker, New York 1995 has a bit more. One of the schemes involves holding the yeast in filter pads just as Ken suggested. * * * * * * * * * * * * * * * * * * Al writes: >Dave writes, quoting AJ: >AJ> This is true for inflow as well as outgo so the >AJ>experimental numbers for the stockpot are somewhat applicable. It took >AJ>about three hours for the DO level to drop from 66% above saturation to 58% >AJ>above saturation in the experiment. Water in the same pot should thus move >AJ>from 66% below saturation to 58% below saturation in about the same time. >>I agree that transport phenomena should be the same, but you are looking >>at >>66% saturation with oxygen trying to come to equilibrium with 20% >>oxygen in >>the air. Not really the same ballpark as 0% saturation in >>equilibrium with >>20% oxygen. >You are missing a lot of oxygen there... rember that it's 66% ABOVE >saturation or 166% of saturation. You're right that this is not in >the ballpark of 0% relative to 20% -- it's a *great* deal more. Assuming that the rate of flow is proportional to the partial pressure difference and the area of the interface and using the 3 hour number (from 166% to 158%) to determine the flow rate per unit pressure difference, the time required to go from 58% to 66% would be 10.5 hours. I think the readers should be allowed to judge for themselves as to whether that is "about the same time". Pehaps I will be accused of "linear thinking". A. J. deLange - - Numquam in dubio, saepe in errore. Please Note New e-mail Address Return to table of contents
Date: Wed, 15 Jan 1997 08:38:19 -0500 (EST) From: JSC1117 at aol.com Subject: Re: Homebrew Digest V2 #28 DONT' CARE Return to table of contents
Date: Wed, 15 Jan 1997 08:38:43 -0500 (EST) From: JSC1117 at aol.com Subject: Re: Homebrew Digest V2 #29 STILL DON'T READ Return to table of contents
Date: Wed, 15 Jan 1997 08:39:03 -0500 (EST) From: JSC1117 at aol.com Subject: Re: Homebrew Digest V2 #30 DO NOT WANT TO READ Return to table of contents
Date: Wed, 15 Jan 1997 09:05:43 -0800 From: George De Piro <George_De_Piro at berlex.com> Subject: Deschutes Beer (George De Piro) Hello all, A friend of mine is heading out to Oregon this weekend, and I've asked him to bring me back some beer. One of the breweries that I was most impressed by on my trip out there last year was Deschutes. I was going to ask him to get me the Obsidian Stout and Black Butte Porter, but it then occurred to me that they may have introduced something new in the past year. Any recommendations? Private E-mail is probably more appropriate than posts because of the EXTREMELY limited interest of this query, plus the time factor (he leaves on Friday night). Thanks in advance, have fun! George De Piro (Nyack, NY) Return to table of contents
Date: Wed, 15 Jan 1997 08:59:59 -0800 From: George De Piro <George_De_Piro at berlex.com> Subject: RE: Boiing the wort the day after mashing (George De Piro) Howdy, Steve Alexander brings up some potential problems with my idea of boiling the wort the day after you mash. He also has some questions. First, to refresh memories and to clarify my original post, the wort is collected in the kettle, heated to near boiling, covered and left for several hours (overnight) while I go about the rest of my life. The next day the heat is turned on (T=~130 or so), the wort boiled, hops added, etc. Steve brings up the DMS problem. He is correct that DMS is formed at the temp that the wort is sitting at, and because the cover is on, it doesn't all evaporate. The boiling point of DMS is quite low, though (95F, 35C), so I am confident that it is boiled off the next day. I, too, was concerned about oxidation of the wort, but I rationalized that: 1. The wort is not going to hold dissolved O2 at the temperatures involved. 2. The water does evaporate substantially (my cover isn't super tight; I lost about 1 gallon), so how much air is over the wort as compared to water vapor? I'm not sure that these rationalizations are logical or correct, though. Any opinions? Steve asks about the shelf life of the beers made this way. I've done this 4 times. Twice the beers were light ales meant for mass consumption at large parties, so I don't know how they would have been past the age of 1.5 months (poor things lead such a short existence). Being light ales, however, problems such as DMS should have been quite apparent (both were made with mostly German Pils malt), and it wasn't. One other was a Bavarian Weizen. It seemed fine for the few months that it was around. No DMS, no noticeable oxidation. The fourth beer is in the fermenter now. I'll let you know what happens. For what it's worth, the wort didn't smell particularly corn-like after the boil. I would be afraid of keeping the wort overnight at lower temps because of the inevitable bacterial action, although it could actually help some styles. Not a bad way to sour a dry stout, actually. Hmmm. Have fun! George De Piro (Nyack, NY) Return to table of contents
Date: Wed, 15 Jan 1997 09:52:54 -0800 From: George De Piro <George_De_Piro at berlex.com> Subject: RE: Long mash time/trub removal/diacetyl in ESB (G. De Piro) Hello again, Ronnie Baert writes: > Beware of extremely long mash timrs: it can cause to a typical flavour > like "boiled vegetables". I don't think I've ever heard of this before. Long mash times can cause excessive tannin extraction, giving the beer a husky astringency. "Boiled vegetables" is usually indicative of an infection. -------------------- Braam asks about trub removal. It is true that trub contains some yeast nutrients, but they are not essential if the wort is well oxygenated (the yeast need an oxygen source for cell membrane development). Many brewers remove as much trub as they can in an effort to make a clean tasting beer. I regularly remove both hot and cold break from my lagers, and don't (usually) have fermentation problems. -------------------- Tom G. writes about high diacetyl levels in ESB, and how he managed to reduce them. I thought diacetyl was welcome in an ESB, isn't it? I was also under the impression that brewers who aerate during fermentation are helping to boost diacetyl levels? Am I wrong about this? Have fun! George De Piro (Nyack, NY) Return to table of contents
Date: Wed, 15 Jan 97 10:04:39 EST From: Eric Peters <epeters at rtp.semi.harris.com> Subject: Re: Air filter - The Final Answer (Eric Peters) Keith writes: >The HBD needs a good lively discussion, so here's my attempt to start >one... >Sorry if I'm sounding a bit harsh here, but the anal-retentive >beliefs regarding sanitation that abound in the homebrewing community >frustrate me. It seems we focus on more elaborate (and silly, IMHO) >methods to keep contaminates out when if we'd spend just half that >effort on general house keeping and pitching an adequate quantity of >yeast we'd actually be better off (same result, less effort). Keith, I couldn't agree with you more. The battle against infections must always be fought on two fronts; reasonable (not anal) cleanliness and healthy pitching. Especially the latter, which can't be overstated, but seems to get overlooked in this forum and others. I brew in the back yard. My CF chiller and fermenters see a *mild* bleach and water solution (after they are cleared of leaves, sticks and general lawn debris [Stupid dog!]) and are rinsed with (brace yourself) well water from the garden hose that was just lying in the mud! Oh, my! Over 600 gallons brewed, 60+ batches, no infections, and I don't stop brewing in the hot, humid, summer months. I always pitch a high volume of healthy yeast into an extremely well shaken carboy. I usually see strong active fermentation within a couple of hours and have seen fermentation take off in less than one hour. If I am not pitching a jar of 1056 from the local brewery, then I start yeast a week in advance. *warning* - I'm not a yeast expert, but this works for me. YMMV. Starter for 20 gallons of wort: day 1 - Smack the pack day 2 - Pitch swollen pack into 1 qt starter wort day 4 - Decant starter, pitch into 2 qt starter wort day 5 - Decant starter, pitch into 1 gal starter wort day 6 - Decant starter, pitch into 1 gal starter wort day 7 - Brew, decant starter, pitch slurry into carboys Every time I feed the starters I shake the living at #$% out of them. The starters are a lot of work, and $, so I always opt for the local brewery sample when available. Pitch well, practice *reasonable* cleanliness, and come brew day forget about your rubber gloves, HEPA filters, laser beams, etc. Pitch Well and Prosper, Eric Peters Durham, NC Return to table of contents
Date: Wed, 15 Jan 1997 10:06:25 -0500 (EST) From: "Steven D. Lefebvre" <slefebvr at zoo.uvm.edu> Subject: re. long mash times and off odors In regards to long mash times I have read about and performed several overnight mashes (6+ hours). I have never or have not heard of anyone gettin off flavors from this method. In general I mash in a cooler and the temperature drops about 4F at most. In order to get a full bodied beer I have mashed at 156F and have had good results. Both alpha and beta amylases will denature after a few hours (beta more quickly at this temp) and no further degradation of starches will occur. This leaves the beer with enough dextrins to have medium to full body. Peace Steve Return to table of contents
Date: Wed, 15 Jan 1997 10:20:30 -0500 (EST) From: Larry M Matthews <lmatt at ipass.net> Subject: What's the limit Morning! I've been kegging my beers for a few years now and usually keep 4-5 kegs available at all times. About every 6 months, I'll prepare a keg of iodophor solution to sanitize my delivery hoses. I usually keep 6-8 different lengths available to match up the beer styles with the different hose lengths so that carbonation and head development can be maximized. My question. Is cleaning the lines every 6 months sufficient? I often switch kegs and don't sanitize or switch lines if I'll replacing with a like style beer. As long as the last of the previous keg was fine, I just push through about a 1/4 glass of the possible mixed beer and begin the carbonation process for the new keg. Within a 6 month period I may go through 2-3 kegs at 3 or 4 of the taps. I'm just too lazy to dedicate a beer keg to iodophor only and clean everytime I switch out a keg. However, once I've filled a corny with iodorphor. it's simple to clean all lines in about 30 minutes. I always clean my line for the CPF at this time also although I often feel the need to clean it after each filling for a contest. For others who keg extensively, how often do you clean the supply lines or for that fact actually change the lines? Private email is fine. Larry M Matthews Carboy/Trub Member Raleigh, NC 27606 lmatt at ipass.net Return to table of contents
Date: Wed, 15 Jan 1997 10:26:51 -0500 (EST) From: Jim Busch <busch at eosdev2.gsfc.nasa.gov> Subject: Decocting US malts/lager pitching Steve correctly notes: <stating that they (as do I) regularly decoct munich and vienna malts. <Perhaps the problem is the source of the malt. One widely distributed <US maltster uses 6-row barley for every malt except one labeled as <2-row pale. I can imagine that a decoction from it's 6-row munich or <6-row crystal might turn out badly. While Im no fan of most of the domestic specialty malts I was pleasently suprised with some results of decocting domestic 6 row Vienna malt at a local micro. The micro made a Oktoberfest with a good deal of the grist being comprised of Vienna malt made from 6 row barley. While this beer was perfectly fermented with ideal conditions and W34/70 yeast it was also lagered over 6 weeks at 31F. The resulting maltiness and subtle grain bite was very pleasing indeed, even if it was no Paulaner Maerzen. someone else writes: <I thought Vienna Malt was highly modified and would not require a protein <rest. However, I picked up a recipe for a marzen that calls for 9+ lbs of <vienna, plus some other stuff, and the recipe calls for a *double decoction* <mash. This is how Maerzens/Festbiers are made. Victory's is double decocted. Al said something about pitching his lagers at 55-60F and once his immersion chiller went all the way down to 50F. I would suggest that cleaner lagers are created by commencing the fermentation stage at 42-46F and allowing the fermentation to generate the rise in temp into the high 40s/low 50s. Of course this requires optimum pitching rates and DO levels. Im pretty sure AJ does this practice at home and he makes some of the tastiest homebrewed lagers Ive ever had. Prost! Jim Busch Return to table of contents
Date: Wed, 15 Jan 1997 07:28:08 PST From: bill stumbo <stumbo at eng.mc.xerox.com> Subject: Propane Cookers I'm looking into getting a propane cooker, since I know next to nothing about them I thought I'd ask the collective. I've seen a variety of Cajun Cookers advertised with BTUs from 110k up. In fact, I noticed a 135K BTU Cajun Cooker advertised for $18.49. I like the price, but am I going to be happy with the results? Any comments on the various varieties of cookers? Is there a particular one you like? One's you dislike? Things I should look for in a cooker? How much control over the flame do the various cookers have? Are my options going to be on or off? How efficient are the various cookers? My brewing is currently extract in 5 gallon batches. I'd like to try all grain at some point in time. Thanks, bill stumbo at eng.mc.xerox.com Return to table of contents
Date: Wed, 15 Jan 97 08:21 PST From: Charles Burns <cburns at egusd.k12.ca.us> Subject: Special-B vs Belgian Aromatic I have a recipe that calls for Belgian Aromatic. I went to buy some and the homebrew shop owner said that it's the same as Special-B and sold me some. Yesterday I talked with a guy that's got a Porter recipe that calls for Belgian Aromatic and he says that maybe next time he's going to use Special-B INSTEAD! As usual, I'm confused. Are they the same thing or not? Charley BTW - my recipe is for a marzen, does the Special-B make sense here? Its only 3/4 pound most of the rest is Vienna. - --------------------------------------------------------------- Charles Burns, Director, Information Systems Elk Grove Unified School District cburns at egusd.k12.ca.us, http://www.egusd.k12.ca.us 916-686-7710 (voice), 916-686-4451 (fax) http://www.innercite.com/~cburns/ Return to table of contents
Date: Wed, 15 Jan 1997 10:48:59 -0500 From: Jeff Renner <nerenner at umich.edu> Subject: Re: Long mash time causes "off" odors? "John R. Bowen" <jbowen at primary.net> wrote: >Ronnie Baert writes: >> Beware of extremely long mash timrs: it can cause to a typical flavour >> like "boiled vegetables". This is typical of an infection, not the result of a long mash. I don't think anything is going to be growing at mash temperatures. >What is an extremely long mash time? I have recently started partial >grain brewing (I can't handle a full wort boil, so its hard to do all >grain). I heard someone talking about mashing overnight in an oven, and >that seemed too easy to pass up, so I tried it: 6 lb pale ale malt, 4 >oz wheat malt, 2 oz crystal. Heat 7 qt water to 120F, add 1 tsp gypsum >and grains, wait about 10 min and adjust pH to 5.3 with phosphoric acid. >Pop it in the oven (convection type, with circulating fan) at 150F and >go to bed. Sparge and brew in the morning. Sure shortens the brew day! > >I didn't smell (or taste) any DMS or other off odors, but it is still >fermenting. > >I understand that I will get a high conversion and probably low >dextrins, which will be unsuitable fo some styles. But that aside, am I >really looking for trouble here? Will the grain bill make a difference? I don't think you're asking for any "trouble" wrg off-flavors from your procedure, but there could be other problems. Pale ale malt doesn't need a protein rest, and the time it takes the oven to raise the mash from 120 to 150 is probably *very* long, especially without any stirring. Air, even with a convection oven, is a very poor transferer of heat. I wonder how long it takes. My guess is many hours, and your wort is going to spent a lot of time at 135 - 145F, with the result that you would get a very low dextrin wort. My suggestion is to skip the protein rest and mash in to your desired conversion temperature (150-153F), then put it in the oven. I used oven mashes for 15 years, often overnight, other times for just one hour. I never had any problems with over-conversion or anything else. Worked fine, and made fine beers. Jeff - -=-=-=-=- Jeff Renner in Ann Arbor, Michigan c/o nerenner at umich.edu Return to table of contents
Date: Wed, 15 Jan 1997 11:16:35 -0600 From: lheavner at tcmail.frco.com Subject: Mead? Greetings from the winter wonderland of Texas (I wonder when it will end) I have some friends who recently moved here from CA. The used to raise bees for honey and brought with them about 50 gallons unprocessed that they need to do something with or throw it out. I suggested mead and they thought it would be a great idea. I have never tasted or made mead and neither have they. Therefore, I was wondering what would be recommended for a first try. They like blush wine and I lean towards Italian reds. They like commercially made domestic swill but enjoy most beer styles and appreciate the homebrews I have given them. I usually prefer IPA's, ESB's, and Marzens. I don't know whether to go for spiced/fruited/pure or sparkling/still. Also, it is my impression from the HBD that these things take a while (as in 6 to 12 months). I don't have a lot of empty carboys or spare refrigeration space for fermentation. But I can't wait a year between batches, can I? Does anybody know of any sources for commercial or homemade mead in the Austin area that I could sample? Would anybody like to offer advice or opinions on the best way to utilize this honey windfall? Would any Central Texas meadmakers want to trade some honey for some mead? Private e-mail is probably most appropriate. TIA Lou Heavner <lheavner at frmail.frco.com> Return to table of contents
End of HOMEBREW Digest #2311