HOMEBREW Digest #1433 Thu 26 May 1994

Digest #1432 Digest #1434

		Rob Gardner, Digest Janitor

  Mills (Jack Schmidling)
  Mills Part two (Jack Schmidling)
  Water heater controls (Venter)
  a couple things (Btalk)
  "brew King" mini-kegs (Raymond J. Deininger)
  BrewsNews (mmankin at ieee.org)" <mmankin at ieeemem.ieee.org>
  BeerFest 94 (Maj Don Staib )
  Malt Mills, George Danz ("Mr. Dudley")
  SG Corrections ("Manning Martin MP")
  Re: HBD #1432 SRM, maple flavor (Neil Flatter)
  Carbonation question and a gizmo. (COTE_FRANK)
  Re: Head Retention ("Mark B. Alston")
  one shot of whisky is lethal????? ("John L. Isenhour")
  Rich Fortnum ("Daniel F McConnell")
  Experiences with 10BL Brewing Eq./Vendors (gcw)
  Cask-conditioned "real ales" (Jay Lonner)
  RIMS Usage (S29033)
  SRM colors/dextrin malt/nastie by-products/sanitation (Algis R Korzonas +1 708 979 8583)
  Re: more ramblings (Jim Busch)
  Re: Ripping Bacteria Apart (Jeff Frane)
  SG and temperature (James Kendall)
  Sweet Mead/Gadgets/Krauesening (npyle)

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---------------------------------------------------------------------- Date: Tue, 24 May 94 17:12 CDT From: arf at mcs.com (Jack Schmidling) Subject: Mills * NOTE... if you get tired of reading this, skip to the last paragraph. >From: jim.king at kandy.com (Jim King) > I like the crush from the Glatt better.... This is a subjective statement that should not be confused with the actual crush quality. In the serious world, the crush is evaluated by sieve analysis and in the most recent study I know of, the Glatt was not even different from the MM, let alone "better". The same study indicated that the best crush came from two passes through a fixed MM, with the Corona a close second. The adjustable MM would have come off best if it had been adjusted correctly. Because of its unique, non-parallel rollers, just setting it with a feeler in the center makes it look like a fixed mill. > and I like the fact that it does not come connected to a base, so I can attach it to whatever surface I like. The base on the MM is a feature that costs money and allows totally portable and dust free use. You can obviously remove it or clamp it to a table for fixed use. > Also, the adjustable Glatt is only a little more expensive than the non-adjustable Schmidling Mill... I would still like to hear from someone who can prove that it makes better beer than a fixed MM. So, for a "little more" you get a mill that is less than half the size, whose critical components are plastic and an acknowledged reputation for catastrophic failure. I may be a little thick-headed and biased but I just don't understand why people wait in line for them. > In summary, If Mr. Glatt ever learns to run a business (ie: shipping in quantity enough to satisfy the demand), he will definitely give you a run for your money. If he doesn't solve the reliability problems before upping his volume, he will soon wish people would stop buying them. He is welcome to whatever share of the market he can capture and there is certainly more than I need to satisfy my urge to get my hands dirty. My only interest is to defend my product from misinformation and make sure that prospective customers understand what the tradeoffs really are. Thus far, the choices seem to be a Model T, a Yugo, a VW and a Rolls Royce but without the price differential one would expect. >From: wolfgang at cats.ucsc.edu (Robert F. Dougherty) >Subject: maltmill throughput... >I have an adjustable maltmill from JSP, and I also noticed decreased throughput. (BTW, my mm has the groved rollers.) I have played with adjustments extensively and even took great pains to get the rollers parallel again. I believe I have isolated the problem, though. It seems that the rollers get a bit crusted with compacted flour and this seems to make them more "slippery" than when they are new. I haven't tried it yet, but I think a wire brush (copper?) would clean up the rollers well and allow them to suck in the grain once more. A normal (steel) wire brush will do a good job of cleaning out the groves and this should should have been pointed out in the instructions. However, as time goes by, the sharp edges will eventually wear down but this is not usually a problem with adjustable mills. This is the reason I have switched to the coarser texture about a year ago. > This may be the same problem which Jim experienced with his glatt. Possibly but the situation is reversed, viz., he is having problems with the new diamond knurl that Glatt has switched to. >Jack's post in HBD #1428 was too long and contained too many unnecessary jabs at the competition. I apologize for the length but as this is an open information exchange, I sort of consider the "jabs" as information that can be taken as simply data points which can be verified or countered by the readers. But I see no reason not to point them out just because I happen to make a competative product. cont.... Return to table of contents
Date: Tue, 24 May 94 17:28 CDT From: arf at mcs.com (Jack Schmidling) Subject: Mills Part two >From: Allen Ford <allen at darwin.sfbr.org> >I called the homebrew supply shop at which I purchased the Glatt mill to be sure my figures were correct. Indeed, I was wrong. I paid $85 for the Glatt mill on a one-time good deal. His price is now $95. For the comparable Maltmill with adjustable rollers and gear drive, the shop owner owner quoted me a price of $180. THIS IS A DIFFERENCE OF $85, not $40. Sorry, next time I'll check my facts more carefully! No, just stick to an objective definition of "comparable". The plastic gears are an integral part of the Glatt and it will not function without them. The precision ground, steel gears on the MM are an option that may improve the efficiency in high volume use but are not required or even useful in homebrewing applications. The MM is more than twice as large as the Glatt as has been stated ad nausiam and hardly seems comparable and it needs to be proven that adjustability is of any real advantage to a homebrewer. >If I understand him correctly, Jack has not compared the two products in side-by-side crush tests. In fact, I believe that he stated that he has not even seen the Glatt mill. I HAVE compared them and have reached my conclusions based on these tests, not on what someone else has told me. I purchased a Listerman mill and a Corona and did exhaustive tests and published the results. I will be delighted to buy (or swap for) a Glatt for the same purpose when it becomes a final design or at least an off the shelf product. At the moment it is like nailing jellow to a wall and would no doubt change again about the time I finished testing one. I can't even get a data sheet on it and have relied on articles posted here and comments made by customers who have called complaining about it. >I resent this forum being used to publish untested, defamatory, and/or misleading statements in a blatant attempt at self-promotion. It is both unethical and unforgivable. I agree and again apologize if it came off that way but my information is based on the above and in addition, the Wort Processors did a review of the mills about a year ago and much information can be gleaned from their report. There is also a review to be published in the Fall issue of Zymurgy but as it has not yet been published, I can only allude to the results and not cite them directly. >From: jim.king at kandy.com (Jim King) > The mills are EXTREMELY equal.... Hmmmmm.... nice choice of words. > I especially find offensive your attempt to compare the price of the adjustable Glatt to that of your fixed roller mill in an attempt to claim that they cost the same. (rather than comparing to your adjustable mill, as would be more appropriate). What you find offensive is simply my reaction to Glatt promoters claiming that the MM costs $200. One can now pay $1000 for a MM but that doesn't mean one need to spend that much to do what can be done with a Glatt. As I have stated frequently, if one can make beer as good with a fixed MM as an adjustable Glatt, it is not offensive to point this out. It is doing prospective customers a favor. > In addition, you try to imply that your mill is easier and better for motorizing. Not quite. I said it was designed with that in mind and has bronze bearings in lieu of plastic and the warranty is not in any way effected by motorizing it. > The Schmidling mill that I have worked with has a handle that is VERY difficult to remove... Not sure what the problem was but it is as difficult as loosening the set screw and sliding if off. > I did not intend to keep a "my mill is better than yours" battle going.... Prove it. If I wait a few more days, you will probablay force me to extend this even more. Don't take it personal. Enjoy your mill and remember about stick and stones? > Try letting yourcustomers sing the praises of your mill, rather than doing it yourself. They do but it is not their responsibility to defend my product and I reserve the right to do it as I see fit. And for a final word to put things into perspective and close out this interesting thread..... The MM dwells on a separate plane from other mills. Its supreme performance virtually forcloses any situation where one would even consider an alternative. The malt flows over the rollers while you bask in near limousine comfort. However, motorizing your MM would squander a sublime pleasure. Elegant polished aluminum, natural fiberboard, dual massive rollers, smooth rolling oil-impregnated bearings and the finest assembly staff in the world, enhance this monument to perfection. But no single feature distinguishes the MM; its glory is the way all is synthesized into an awesome, incomparable whole. js Return to table of contents
Date: Tue, 24 May 94 22:05:17 EDT From: Venter at aol.com Subject: Water heater controls In HBD1431, a suggestion was made to use the guts of an electric water heater for sparge/mash water heating. A few points of information.... For most of our collective lives, the "center detent" on storage water heaters was set to deliver water at about 140F. However, in the last few years, concerns about the potential liabilility of scalding the young/old have caused manufacturers to change the center detent temperature to equal to 120F. You should also know that the thermostats on residential storage water heaters usually have large deadbands. That is, they cool down well below setpoint before they turn on. And, they go well above before they turn off. So, expect temperatures below what you need for mashing with a considerable swing Bob Borgeson Return to table of contents
Date: Wed, 25 May 94 08:26:01 EDT From: Btalk at aol.com Subject: a couple things My first question today- How do you figure specific gravity that results from diluting a known gravity and volume with a known volume of water? In this case I diluted 7 gal of 1.067 into 10 gal. and didn't use my hydrometer on the new volume. In Papazian's book he has a little chart and also says that the rate of dilution and change in specific gravity are not the same at various densities. Is there a formula that handles this? Or even a more complete chart or graph? Re: malt mills. I have this great idea of converting an old ringer from a washing machine into a roller mill. At first i thought of replacing rubber rollers w/ metal ones but on any rollers I 've seen so far, the rubber is so damn hard that it may work as is! Has anyone tried THIS??? One more thing. I've just started mashing and used some rice in my last mash. After boiling the rice to gelatinization I added it to mash. The thing is that examining sparged grain, the rice seems to have disappeared! Did it all convert? Regards, Bob Talkiewicz, Binghamton,NY <btalk at aol.com> Return to table of contents
Date: Wed, 25 May 94 07:57:21 EDT From: ray at mita.com (Raymond J. Deininger) Subject: "brew King" mini-kegs Hello fellow brewers, I have been listening to the HBD for a while, but this is my first post. Please have mercy... My wonderful and charming wife recently gave me this mini-keg system from the local hombrew shop. She said "the guy said it was great". It looks (in theory anyway) like a neat device, but I thought I would tap the collective wisdom of the HBD before I use it. The thing is a 5 liter can with a plastic plug. It came with a tap that has a tube that reaches the bottom of the can and holds co2 cartridges. The name on the box is Beer King. now the questions: - Should the beer be primed as usual?? - will the plastic plug be blown off? - If I don't drink it all in one sitting, will the co2 cartridge keep it fresh? - Does anyone have any experience with this thing? - Should I keep it or return it? Thanks Private E-mail ok. ============================================================================== Ray Deininger, MITA, Inc. | The image | voice: (215) 957-6444 301 Horsham Rd. Suite J | translation | fax : (215) 957-6467 Horsham, PA. 19044 | specialists | e-mail: ray at mita.com ============================================================================== Return to table of contents
Date: Wed, 25 May 1994 09:04:14 -0400 From: "Mark Mankin (mmankin at ieee.org)" <mmankin at ieeemem.ieee.org> Subject: BrewsNews A couple of months ago, I posted an inquiry about BrewsNews, a newspaper my wife & I subscribed to (and paid for), but never received. To date, I've received replies (2) from one person (you know who you are). The info you provided is proving invaluable to us & I've tried to send you private e-mail thanks & updates, but my replies always get bounced (host unknown), most recently today (05/25/94). I'd like to thank you personally for your help & keep you updated on our progress, but the Information Superhighway seems to be suffering from hiccups, forcing me to use HBD bandwidth. Please e-mail me with a way to get in touch with you (even <<shudder>> US Snail). Thanks again for all your help. Keepin' It Short to Save Bandwidth, Mark Mankin (mmankin at ieee.org) Return to table of contents
Date: Wed, 25 May 94 07:28:58 -0600 From: staib at oodis01.hill.af.mil (Maj Don Staib ) Subject: BeerFest 94 The excitement is building...bubbling...brewing...as the Stein Eriksen Lodge of Park City Utah kicks off it first-ever BEER FESTIVAL! Here's what's on TAP: There will be 16 beers from Utah's 4 popular Microbreweries. Music by CHORD ON BLUES, a fashion show by BJORN STOVA, and BEERMAKING demonstrations. Whet your appetite with Spicy Southwestern BAR-B-Que, Oriental, and other fares. When: Saturday, May 28 (Memorial Day Weekend). on the scenic outer decks of Stein Eriksen Lodge, in Park City. 11am to 5pm. Admission is FREE. If you're in town on business, or just passing through, I wouldn't miss it! Cheers, The Braumeister in Layton, Utah! Return to table of contents
Date: 25 May 1994 08:58:44 -0400 (EDT) From: "Mr. Dudley" <S29711%22681 at utrcgw.utc.com> Subject: Malt Mills, George Danz George: I *LOVE* my JSP Malt Mill. I Did get the adjustable option ($20-$30) but rarely use it. Most malts crush fine on the factory setting. Besides the adjustability is only on one side of the roller being adjusted. It works but I'm still unconvinced it was worth it, but hey, you never know. It is very reliable in "stock" form with a rubber ring pinched between the passive and active roller, but has the potential to wear out. There is an expensive ($100 I think) option that converts the whole thing to active drive on both rollers. This option is probably overkill unless you mill 50# per week. Good luck. Return to table of contents
Date: 25 May 1994 09:17:51 U From: "Manning Martin MP" <manning#m#_martin_p at mcst.ae.ge.com> Subject: SG Corrections Rich Larsen asked about an automated adjustment procedure for correcting SG readings, to which John Bloomberg replied that the answer was probably in a recent BT article. Unfortunately, this is not so. Depending upon your accuracy requirements, this can be a tricky problem. For measurements taken with a hydrometer, you need to correct for the density change of the wort, which is a function of both its temperature and extract content, and also for the change in volume of the instrument itself with temperature. There is a good table of the density of water as a function of temperature in the CRC Handbook of Chemistry and Physics, which includes a polynomial fit. Somewhere in there is a thermal expansion coefficient for glass as well. To get the extract effect, De clerck's book has a chart showing the correction (in Plato degrees) as a function of temperature and degrees Plato. It has a rather limited range of temperature shown, however. The best strategy for high accuracy is to minimize the correction by adjusting the sample to near the reference temperature. Professional-quality instruments have both an internal thermometer with a direct correction readout, and cover a limited range of density (~10 degrees Plato or ~40 points SG) to minimize the error introduced by adjusting only for temperature. MPM Return to table of contents
Date: Wed, 25 May 1994 09:08:01 -0500 (EST) From: Neil Flatter <FLATTER at CMA.Rose-Hulman.Edu> Subject: Re: HBD #1432 SRM, maple flavor >Date: Tue, 24 May 1994 22:39:45 +1000 (EST) >From: David Draper <ddraper at laurel.ocs.mq.edu.au> >Subject: SRM colors--charts, anyone? > >Whud id iz: In today's digest, Rich Webb asked about the SRM values of >extracts and chocolate malt (to which I replied offline). This jogged me >into asking something I've been meaning to for a while: does anyone know >where I can order a color chart showing srm colors? I'd like to be able >to assess whether I've come close to the target color values, and whether >my calculated estimates are anywhere close to what I get in reality. I have calculated degrees Lovibond starting w/ Michelob Classic Dark. MicDark is used because it is readily available in the US and is known to be 17 degrees. If anyone would like a copy, I'd be glad to mail out the info. Another standard could be used w/ similar calculations, but I haven't tried it myself. >------------------------------ >Date: Tue, 24 May 1994 16:20:33 CST >From: "Dan Houg" <HOUGD at mdh-bemidji.health.state.mn.us> >Subject: maple sap brews, Zima taste opinion > >The recent post on maple sap brewing prompted me to post also! Last >year I made an extract brew using sap as the entire water source. >I'd made it into a 'maple-ginger lager' and while it was a fine, >light summer-y drink, I have to admit that little if any maple flavor >came through. The water or rather sap did seem to produce an >excellent, clean beer tho. While we made about 15 gallons of maple >syrup this year (that's about *500* gallons of sap!), I didn't sneak a >brewing session in. I think a fine, mapley beer could be made >however with the sap boiled down to the specific gravity of say 1.040 >or so. Anyone try this? A friend gave me some maple sap he had concentrated down to 1.09 (Thanks, Dave!) which I used instead of the corn sugar suggested by the extract kit I was using. About a month ago I tried the first one. It was so sweet that I'll let it set for a while. I gave a bottle to perspective brewer who liked it, but thought it was over- carbonated. (He likened it to cola that had gotten warm.) Neither of us noticed a cleaner finish and any woody/maple/oak/spice notes would have been overwhelmed by the sweetness. BTW my OG=1.043 - -------------- Neil Flatter Rose-Hulman Institute of Technology Chemistry - Math (CMA) Department of Chemistry Stockroom Manager Novell Supervisor 5500 Wabash Avenue 73 (812) 877 - 8316 Terre Haute, IN 47803-3999 FAX 877-3198 Flatter at CMA.Rose-Hulman.Edu Return to table of contents
Date: 25 May 94 08:30:00 -0700 From: COTE_FRANK at Tandem.COM Subject: Carbonation question and a gizmo. Hi everyone, How does carbonation work? The first time I feed my yeasties, at fermentation time, they make alcohol (yes, they do a lot more than that but please don't give me a HBD beating because I'm being brief). The next time I give my yeast something to snack on, at bottling time, they produce carbonation. How come more head isn't produced during fermentation, and alcohol isn't increased during bottling? I must admit I don't understand carbonation the way we do it at all. I'll post any good replies I get that haven't been posted already. The gizmo I have is called a "Boil Alert" by Fox Run. My wife and I found this years before I started brewing in a housewares section of a small store. We can't remember where but maybe one of you knows where they can be found. So what is it? It's a three inch glass disk that sits in your brew pot and starts flapping around BEFORE your brew comes to a boil. There is no boil over! None at all. This thing is great, not only does it warn you that boiling is about to start. It's flapping around stirs the mix and does the same thing you would do if you stired constantly while the mix heated up. After the boiling starts I get a wide flat spoon and remove it to avoid bothering my family (usually I brew in the mornings). I can't induce my brew to boil over since I started to use this (yes I tried). If someone knows where to find these I'll post that as well. Ciao' for know, Frank Cote Tandem Computers Return to table of contents
Date: Wed, 25 May 94 10:11:08 MDT From: "Mark B. Alston" <c-amb at math.utah.edu> Subject: Re: Head Retention Tom makes the following good suggestion: The third thing is make sure that your glassware is clean and is the right shape. Both of these factors affect head retention. I'm not an I never realized how true this is until pouring off the first few glasses of my barley wine. You could head the foam being destroyed by the oils and such on the glass. It sounded like the fizz from a cola head dissapearing. By simply rinsing out the glass before decanting the head lasted much longer (about one min rather than one second) and made the beer much more pleasing. FWIW, Mark Alston (c-amb at math.utah.edu) Return to table of contents
Date: Wed, 25 May 1994 11:34:42 CST From: "John L. Isenhour" <isenhour at lambic.fnal.gov> Subject: one shot of whisky is lethal????? Al Korzonas comments about mouth siphon sanitation: >>rinse mouth with 1/2 oz. Jack Daniels or similar immediately before sucking. > >This shouldn't be much of an improvement. I tend to agree with this, but I do know lots of brewers who suck start siphons and their beers are not infected. I may have to do some testing of quart size brews to see what happens (yea, I mean spit in it). >If you were to hold whiskey in your mouth >for a lot less than 30 minutes, you would certainly die from alcohol poisoning >(the vapors would be absorbed in your lungs very quickly and you would expire). This I have to take issue with. How 1/2 oz of 50% EtOH can be lethal without carotid artery injection is not something I understand. If you were holding the alcohol in your mouth you would be breathing thru your nose, you would get some absorbing thru the walls of your mouth. But breathing alcohol is not more toxic a way to absorb it than any non injectable method. Its used in chronic alcohol studies in rats. You maintain a certain level in the air they are breathing and they stay sauced to a certain degree. -john - -- John Isenhour renaissance scientist and AHA/HWBTA National Beer Judge home: john at hopduvel.chi.il.us work: isenhour at lambic.fnal.gov Return to table of contents
Date: 25 May 1994 13:13:40 -0400 From: "Daniel F McConnell" <Daniel.F.McConnell at med.umich.edu> Subject: Rich Fortnum Subject: Rich Fortnum Please email me. I am bouncing, bouncing, bouncing. Dan (there's some bandwidth for you) McC Return to table of contents
Date: 25 May 94 18:12:00 GMT From: gcw at lydian.att.com Subject: Experiences with 10BL Brewing Eq./Vendors I'm looking for information on 10BL brewing systems - the quotes from vendors are coming in, but since none of us have direct experience with large commercial systems, it would be helpful to hear from other brewers who have. Some of the main issues: reliability, installation/delivery, service, ease of use and standard functions/additional features. This will be a standard brewpub setup and will be serving from holding/ bright tanks. Due to space limitations - ales will be the primary beer served. Geoff Woods gcw at lydian.att.com Return to table of contents
Date: Wed, 25 May 1994 11:58:36 -0800 (PST) From: Jay Lonner <8635660 at NESSIE.CC.WWU.EDU> Subject: Cask-conditioned "real ales" It is my impression after several messages on the subject that "real ale" can only be found in the UK. So my question is, how is cask-conditioned ale that is available here in the States different from "real ale," apart from being domestic? My favorite local bar always has two cask-conditioned ales on tap, served from expensive-looking handpumps no less. Last night I had several pints of cask-conditioned Grant's Scottish Ale, which was obviously unfiltered, not too carbonated, and absolutely delicious! I have also had cask-conditioned Red Hook, which is significantly different (in a good way) from regular Red Hook. What am I not getting? Jay. Return to table of contents
Date: 25 May 1994 14:42:48 -0400 (EDT) From: S29033%22681 at utrcgw.utc.com Subject: RIMS Usage I would like to know if anyone out there has had any experiences with the RIMS (recirculating infusion mashing system). I fabricated one from Rodney Morris' instructions (with a few modifications - hey, I'm an electrical engineer. I couldn't help myself). I used it for 12-15 batches and after each batch I rinsed it with fresh water. The last batch of beer I made using it had a nasty chemical like taste to it. I removed the heating element from the unit and noticed that the element had corroded. I also notice that since my grain bed was about 9-10 inches thick (with 8 - 9 lbs of grain) the grind had to be coarse so that the flow rate through the grains could be maintained. Subsequently, my yield was always about 1.045-50 for 8 lbs of grain and specialty malts. I would appreciate any feedback on this subject. Lance Stronk Sikorsky Aircraft, Stratford, CT. Return to table of contents
Date: 25 May 94 18:31:00 GMT From: korz at iepubj.att.com (Algis R Korzonas +1 708 979 8583) Subject: SRM colors/dextrin malt/nastie by-products/sanitation David writes: >into asking something I've been meaning to for a while: does anyone know >where I can order a color chart showing srm colors? I'd like to be able You cannot compare printed (on paper) colors with transmitted colors since the darkness of the transmitted color is dependent on the width of the sample container. What you can do is to pour a sample of the test beer and a couple of reference beers into the SAME containers and then compare them. Bass is 10 degrees Lovibond and Michalob Dark is 17 lovibond. Perhaps you could call some local breweries and ask them what the SRM is of their beers. Then you can put together your own reference list. After a few times, you will be able to estimate the color without the references to within a few degrees. ******* Greg writes: >I plan on brewing a recipe that calls for 1 oz of dextrin malt and >wonder what the difference is between steeping American Carapils >Dextrin Malt, along with the crystal malt that is called for, and using >the dextrin powder that is offerred in many catalogs. Will a 1 oz steep >really add much body? What about using dextrin powder and when should >it be added? I feel that 1 ounce of dextrin malt will add very little. You could skip it if you want or add 1oz more of the light crystal if you want to. I don't know how much malto-dextrin powder would be equivalent (if I had to guess, I'd say perhaps 1/3 ounce net wt.) but it should be added to the boil to ease disolving. ****** Gregg writes: >A thought. If an extract, yeast or any adjunct has an infection would the >off flavor remain even if the bacteria was killed off in the boil. >I base this on the question does the bacteria itself (as a living organism) >taste bad or is it the by-products of the bacteria that gives off flavors. I'm sure you didn't mean that you were going to boil your yeast, but the answer to your main question is that it's the byproducts of the bacteria or wild yeast that give the beer an off-flavor or off-aroma. Killing them will not remove it. Thus, spoiled extract would still make bad tasting beer even though you boiled it. The alcohol may or may not kill bacteria introduced before or after fermentation. Gushers usually indicate that an infection has NOT been killed off by the alcohol. Vegetive, sour, nasty or meaty off-flavors/aromas with no gushing usually imply an infection during the mash or one that has been killed off by the alcohol. ******* Lance writes: >anymore. So, I would say that money is the main reason. There is a counter to >this idea though. I have a good friend who works in the UK and he visits many >pubs and breweries. I asked him about the breweries with open fermentation >vessels. He confirmed that they do have many breweries in the UK which ferment >their ales in open fermenters. So, one may ask, how do they prevent the >dreaded "contamination monster" from ruining their beer? They pitch yeast, >and a lot of it. Good point, but also you must remember that in the UK, I'll bet that most of the beer made in open fermenters is Real Ale and is consumed within 10 to 20 days of fermentation. Off flavors don't really have a chance to develop. I've got a tape of a program called "The Brewer's of Helston" which features the Blue Anchor brewpub in Helston. I counted no less than 10 instances of sloppy sanitation. Ironically, in part of the program the owner says something like: "When we took over the place, we had some problems with the beer coming out bad. We had someone look over our processes and help us clean them up." Gosh, I'd hate to see what they were doing *before* they fixed their problems! >I believe that some places in Europe ferment their beer with >only the naturally occurring yeast's indigenous to that area. This is one of >the good uses for 'contamination' (and yes I quote, Jeff). That would be the Zenne valley of Brussels and the beer is called lambiek (also lambic or lambik). Not only do wild yeasts contribute to the production of these beers but also bacteria (including Pediococcus, Lactobacillus and Enteric bacteria). >Hence, >contamination is a relative thing - some peoples trash is other peoples >treasure. Indeed... I'll bet a German brewmaster would burn his/her clothes after a visit to a lambiek brewery! Oh, and by the way, I do make purecultureLambieks, and I still don't use my mouth to start my siphon on those batches. Okay, to contribute something useful and since I started this whole "don't use your mouth to start a siphon" thread, I'll post my siphon starting technique. Basically it relies on the previous liquid starting the next liquid through the siphon and using a hose clamp (not my fingers) to keep the liquid in the hose when changing to a different liquid. 1. fill siphon hose with water 2. use the water to siphon sanitizer into the hose 3. use the sanitizer to siphon rinse water through the hose 4. use the rinse water to siphon the wort/raw_beer through the hose (discard the first cup or so) If bottling: 5. use the raw_beer to siphon the primed beer through the hose (discard the first cup or so) Al. Return to table of contents
Date: Wed, 25 May 1994 16:08:57 -0400 (EDT) From: Jim Busch <busch at daacdev1.stx.com> Subject: Re: more ramblings > should be mashed to avoid haze problems. Adding the specialty > grains at mash-out was suggested by Bob Jones. Even though he doesnt do this often! > > I do a decoction. You mention Pilsner Urquell as having a great > malt aroma. PU is made with a triple decoction! I've been > doing a 2 step mash with my ales, doughing-in at 145^F or so, > holding for 15 minutes, pulling a 1/3 decoction, heating > to 158^F, holding for 15, then boiling for 15-60. Adding this > back puts the mash at 158^F or so. I rest there for 15-30 > minutes. I then add my specialty grains and enough 190-212 > degree sparge water to warm the mash to 165-170^F mash out. > Using decoctions to enhance flavor has been suggested by Jim > Busch and others. Even though I dont do this often! 60 minutes, wow! Now that must have darkened the mash a bit! > > Another way to add to the malt character is to use more specialty > grains. If John Isenhour stamps MORE MALT on your AHA score sheet, > he's not asking you to make a bigger (stronger) beer. He's talking > about malt character and flavor. Many styles benefit from the addition > of a pound of carapils. You may also consider substituting more of a > lighter specialty malt for less of a darker one. 3 pounds of British > Crystal OR 1/4 pound of chocolate malt will give you about the same > color contribution, but the flavors would be quite different. Likewise > 2 pounds CaraVienne vs 1/2 pound of CaraMunich. Good point, I have been using CaraVienne in much higher percentages than my other caramel malts for just this reason. I use a small bit of Aromatic or Biscuit, a bit of CaraMunich, but mostly CaraVienne in my pale ales. Also been upping the Belgian Munich to around 8% of grist (primarily for when I do a high gravity beer and dilute 10%). > > > From: S29033%22681 at utrcgw.utc.com > Subject: Resp to Jeff Franes Response -- RE:Sucking siphons > > >Lance Stronk writes: > >I think an important thing to remember for those people that worry about > >'contamination'is that as long as the proper "infection" is started quickly > (pitching yeast - >8oz or more) there is no problem with siphoning by mouth. > > To which Jeff Frane responds: > > >I'm not sure why Lance has "contamination" in quotes; perhaps he doesn't > >believe it's a real issue in brewing? In that case, it would be > >difficult to explain why so many commercial breweries (small and large) > >spend a huge percentage of their time sanitizing. > The main point I was trying to instill in the brewers out there is that putting > enough live yeast culture into the "sterile" wort will "choke out" other > foreign bacteria present in the brewing/fermenting process. It isn't difficult > to explain why the commercial breweries take care in sanit ation - they wish to Maybe I shouldnt jump in here since I was one who was pointing out that in my opinion post fermentation contamination is less of a concern than many think, but.... Before high krausen takes hold, dropping pH, upping CO2, etc....*any* bacteria is real bad. Thats why practical brewers are so careful with prefermentation sanitation. Many bacteria can multiply 3 times as rapidly as feremntation yeast, and the results are detectable in parts per billion. Thats why sucking hoses in prefermentation anything is very bad practice. While the comments on yeast overwhelming the bacteria are valid, the concern is justified due to the disasterous results that can occur. > this idea though. I have a good friend who works in the UK and he visits many > pubs and breweries. I asked him about the breweries with open fermentation vessels. He confirmed that they do have many breweries in the UK which fermen t > their ales in open fermenters. So, one may ask, how do they prevent the > dreaded "contamination monster" from ruining their beer? They pitch yeast, > and a lot of it. I believe that some places in Europe ferment their beer with > only the naturally occurring yeast's indigenous to that area. This is one of > the good uses for 'contamination' (and yes I quote, Jeff). Hence, > contamination is a relative thing - some peoples trash is other peoples > treasure. I also use open fermentation and pitch copious amounts of fresh yeast slurry. The issue is not one of fermentation techniques, it is of initial conditions. I fail to see the relationship between professional brewing equipment and siphon sucking, this is one area where we have an exclusive! And the comment related to Belgian brewing is not at all applicable to the discussion at hand. It is also of note that the British cask ales are intended for rapid consumption and will be more resilient to slow acting bacterium. And on the subject of things growing, did anyone see the piece on CNN about chicken processing plants using a TSP wash to kill the samonela on chicken? Didnt even look like any rinsing was required. TSP is great stuff! Best, Jim Busch Return to table of contents
Date: Wed, 25 May 1994 07:47:35 -0700 (PDT) From: gummitch at teleport.com (Jeff Frane) Subject: Re: Ripping Bacteria Apart I'm not exactly sure what I said (given the cropping job) that set Lance off. And I'm not interested in ad hominem exchanges about who, exactly, has a closed mind. I'm also not interested in perpetuations of the notion that effectively spitting into your wort is OK. I would suggest that those who are interested do a little checking on the relative reproduction rates of bacteria and yeast. I would also suggest that people be a little more careful about assuming that what works in a brewery that brews every day will work in a homebrewery (heavy accent on the home) where beer is brewed, at most, weekly. I haven't heard of any beer successfully made by adding oral flora, even lambics. It's important to bear in mind that not all bacteria are created equal. - --Jeff Return to table of contents
Date: Wed, 25 May 94 20:34:14 EDT From: James Kendall <kendall at ltee.hydro.qc.ca> Subject: SG and temperature Hello all, All this talk about sg and temperature has me wondering about something I've read in a book concerning sparging. It suggests sparging at around 77 C until the spargings reach a sg value of 1.005. Now, would this be before or after correction for temperature? This information would be of great value to me since I will soon make the jump to the wonderful world of all-grain brewing. Thanks in advance! "T'is far better to drink a six-pack...than not." Jim Kendall Return to table of contents
Date: Wed, 25 May 94 16:51:20 MDT From: npyle at n33.ecae.stortek.com Subject: Sweet Mead/Gadgets/Krauesening Rob Pyle (what a great name!) asks about a mead sitting at 1.065 or so. I'm no mead expert but I believe meads typically end up with very low FGs, Rob, like below 1. This thing needs more yeast (racking leaves lots of it behind), and some yeast nutrients to help it out. Honey has not what yeasties need to make good. I'd also raise the temperature to the high 60s to help things along. Also, what is "yeast extract"? ** John Pratte asks about mounting the control unit from the water heater to his pot. You can avoid welding by making a bulkhead fitting, which is basically a sandwich of two or more fittings, with the wall of the pot and a rubber washer as the "meat". Assuming your water heater control unit has a male pipe thread, the fittings will have to provide a female pipe thread to the outside. Bulkhead fittings can be made with a variety of threaded adapters; every time I make one it comes out a little different. This is how I've attached valves, etc. to my kettles and tanks. Also, drilling a hole greater than about 3/4" in diameter is difficult to do unless you have a 1/2" drill. Mine is only 3/8", so I borrowed a chassis punch, which is used by electricians to punch holes in electrical boxes. It requires a much smaller hole to be drilled, so is much easier to do. ** Jack Skeels asks about krauesening. I believe that true krauesening is the process of adding fully fermenting wort (at high krauesen...) to the beer just before bottling to add priming food and yeast. Adding wort to prime is often called krauesening, but I believe that is a misuse of the term. The answer to your question is this: you can do it the easy way, but it ain't krauesening. Cheers, Norm = npyle at n33.stortek.com Return to table of contents
End of HOMEBREW Digest #1433, 05/26/94