HOMEBREW Digest #1167 Tue 22 June 1993

Digest #1166 Digest #1168

		Rob Gardner, Digest Coordinator

  Acetaminophen and Hangovers (Phil Hultin)
  Bleach and Free Chlorine (Phil Hultin)
  Re: CDC sterilant (Kelly Jones)
  Mill results (WESTEMEIER)
  barleywine (homebre973)
  Hop Oil ppm vs. IBUs (Mark Garetz)
  Racking off trub, etc. ("Anthony Johnston")
  Re: CP fillers (Chuck Cox)
  Dogbolter Revisited (Joseph Gareri)
  Pushing krauesen and cloudy beer issue (gregb)
  Aluminum cans (Bryan L. Gros)
  Re: Miller Amber Ale ("Donald G. Scheidt")
  Miller ale. (John E. Greene)
  Downloading files from sierra.stanford.edu ("PETER JUST, ANTHROPOLOGY, WILLIAMS COLLEGE")
  mashing and other mysteries of homebrewing (BadAssAstronomer)
  hop extraction (Bryan L. Gros)
  Re: Weizen Yeast (Jeff Frane)
  Re: Chili Beer (Dale E. Higgs)
  Hopping Rates (Jim Kirk II)
  Business opportunity, Devils (Jack Schmidling)
  re: Headaches (Paul dArmond)
  re: 5 liter kegs (dave ballard)
  Hop Report and Apple Weiss (Diane Palme x2617)
  Request for Kegging Info ("Tom Stolfi")
  References on sanitation (George J Fix)
  Hop utilization calculation credits ("Bob Jones")
  Phone number for Dewolf-Cosyns? (John Hartman)
  Those Pesky Siphons (Jeff Frane)

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---------------------------------------------------------------------- Date: Thu, 17 Jun 1993 18:04 EDT From: Phil Hultin <HULTINP at QUCDN.QUEENSU.CA> Subject: Acetaminophen and Hangovers Derrick Pohl suggests taking a tab of Acetaminophen (the active ingred in Tylenol and several other similar products) as a pre-treatment for potential headaches. This is probably not wise. One of the side-effects of acetaminophen is a certain degree of liver toxicity. This toxic effect is especially emphasized when taken in conjunction with alcohol. The studies I saw (several years back, sorry can't give the reference) suggested that in extreme cases (ie: heavy drinkers) the toxicity was sufficiently severe to produce more rapid liver failure than would otherwise be expected. I personally have no problem with acetaminophen in general, but I don't think taking it for drink-related troubles is really advisable. P. Return to table of contents
Date: Thu, 17 Jun 1993 18:27 EDT From: Phil Hultin <HULTINP at QUCDN.QUEENSU.CA> Subject: Bleach and Free Chlorine George Fix discusses the amount of free chlorine produced in solutions of standard bleach. However, his assumption that the percent by weight of "Cl" in NaOCl can be used to give the amount of dissolved Cl2 (no subs or supers on my machine either) is false. The release of elemental chlorine from sodium hypochlorite is described by the equation: 2 NaOH + Cl2 <-> NaOCl + NaCl + H2O Where I use <-> to represent the back-and-forth arrows symbolizing and equilibrium process. Now, this equilibrium lies far to the right, which is to say, that comparatively little NaOCl reverts to free Cl2 and NaOH in solution. Unfortunately, I don't have the equilibrium constant available at the moment, but consultation of "The Merck Index" 10th ed. entry #8463 reveals the statement: "The hypochlorite ion in solution is remarkably stable." Which is essentially saying the same thing I put in the preceding paragraph. So, when George estimates the amount of Cl2 in solution in his posting, he is grossly overestimating. The calculation of the true Cl2 content is simple, if one has in hand the relevant equilibrium constant. The disinfectant action of bleach is largely due to the power of OCl- ion as a disinfectant , while the "chlorine" smell of bleach is a consequence of the extreme sensitivity of the human nose to Cl2: threshold for detection is 0.2-0.4 ppm. P. Return to table of contents
Date: Thu, 17 Jun 93 16:47:29 -0600 From: Kelly Jones <k-jones at ee.utah.edu> Subject: Re: CDC sterilant In HBD #1164, Paul Boor <PBOOR at beach.utmb.edu> asks: > The Center for Disease Control (CDC) in Atlanta recently >reviewed its guidelines for sanitizing IV needles (reviewed in the (stuff deleted) > Anyway, CDC recommends 1/4 cup/gallon water for sterilizing >surfaces, so I'm with the recent comment of R. Stueven: Why has the >bleach concentration been plummeting? Who really knows, like (stuff deleted) > But more importantly, should we be using two different bleach >concentrations for our needles and our Kegs? Are homebrewers out (stuff deleted) I would guess that something you are going to stick directly into your vein, you would want to be PDS (pretty damn sterile). On the other hand, brewing equipment probably need not be quite as sterile, since it will soon contain an alcoholic, low pH substance overwhelmed by yeast. Controlling gross infections is probably good enough. In "Disinfection, Sterilization, Preservation" (SS Block), a concentration of 50-200 ppm available Chlorine is mentioned for sanitizing food contact surfaces. This works out to 20-80 ml Chlorox per 20 liters water (4-16 tsp per 5 gal). I'm not sure what the appropriate contact time would be. > Think about it, but right now I gotta run out to the kitchen >to make sure my refrigerator light is still on. More importantly, does your airlock really bubble when you're not watching it? Kelly <k-jones at ee.utah.edu> Return to table of contents
Date: Thu, 17 Jun 1993 19:57:27 -0400 (EDT) From: WESTEMEIER at delphi.com Subject: Mill results Due to the interest in the introduction of the Philmill, I thought it would be useful to provide a bit of extra data. First, a disclaimer: I belong to the Bloatarian Brewing League, and Dan Listermann, creator of the Philmill, is a fellow member. Our club did a comparison, using standard sieves, of the crush produced by the Corona (properly adjusted), a MALTMILL (tm) (non-adjustable model), and a Philmill prototype (properly adjusted). The results differed rather substantially from the MM sieve results posted here in May by George Fix, but they tended to point to the PM as being somewhat superior. I am personally a satisfied owner of the MM, and I use it often. I have also been very impressed by the results I've seen throughout prototype testing of the PM. I believe they are both first-class, state-of-the-are examples of homebrew equipment. I've tasted beers made with both, and I've very carefully examined the crush provided with both. I honestly believe that anyone would be happy with the purchase of either one. However, for those who require more hard data, Dan Listermann has told me that he will be bringing his set of standard analytical sieves to Portland with him, and will offer to conduct a "crush-off" with all comers. Seeing the results first-hand should persuade any skeptics. ++ Ed Westemeier ++ Cincinnati, Ohio ++ westemeier at delphi.com ++ Return to table of contents
Date: Thu, 17 Jun 93 23:22:10 EDT From: homebre973 at aol.com Subject: barleywine Just a quick question to those knowledgeable about the alcohol tolerance of yeast strain #1084 (Irish Ale). I've used this to make a barleywine with an s.g. of 1.098. After 3 days I racked it to a secondary with the gravity now at 1.037. Since I would like a relatively sweet barleywine, does anyone know what the approximate finishing gravity would be? Is this strain of yeast fairly alcohol tolerant? Thanks. Andy "Dr. K" not to be confused with Julius Erving! Return to table of contents
Date: Thu, 17 Jun 93 21:48:32 PDT From: Mark Garetz <mgaretz at hoptech.com> Subject: Hop Oil ppm vs. IBUs Russ Gelinas asked (me specifically) if the ppm of hop oil had anything to do with IBUs. No. IBUs are *roughly* equivalent to the milligrams/liter of isomerized alpha acids in beer. The alpha acids are responsible for the bitterness in the beer. The oils from the hops are responsible for the hop character and aroma in the beer. Hop character is imparted by late additions of hops in the kettle and/or by steeping hops while the wort cools. Some hop aroam is also imparted by this, but it is a totally different aroma than you get with dry hopping. The aroma imparted by dry hopping resembles the aroma of the fresh hops. But no bitterness is imparted by the hop oils, whether added directly as an oil, or by adding hops late in the boil or by dry hopping. Mark from HopTech Return to table of contents
Date: Fri, 18 Jun 93 9:23:52 CDT From: "Anthony Johnston" <anthony at chemsun.chem.umn.edu> Subject: Racking off trub, etc. As promised earlier during the "should we rack off of the trub" thread, here are results based on two batches I have made, a Steam (tm) and a Stout: Steam (racked off of trub) was pretty good, very bitter and highly hopped. The beer tht was left over the trub for the primary ferment seemed to have some phenolic overtones, but was still pretty good. In all other respects, the beers were treated identically. Also, the beer left over the trub didn't seem as clear as the racked beer. No clarifying agents were used. (I usually use polyclar (tm?).) The stout (a new recipe I invented which has black walnuts in it :) ) was not significantly different between the two batches. Both are opaque deep brown, almost black. No noticeable difference in taste profiles, but the unracked batch has a much more noticeable walnut aroma, probably from sitting in the primary with them for so long. The bottom line is that I will probably continue to rack my beers away from the trub, esp. for those with a lighter flavor profile. The heavy ones I probably won't fret over. - ------------ About filtrations (esp. air filtration) Has anyone out there in brewdom tried using Acrodiscs (tm)? These are disposable membrane catrtridges in a variety of porosities and sizes that are available through science supply houses (VWR, etc.) They are made to fit onto a syringe tip, but could probably be put inline with an air hose. Would not be suitable for liquid filtration, because they are only meant to filter small (several mL) volumes. - -------------- About flames and commercialism Let's be polite here in our criticisms, and lets leave the advertising to the pages of Zymurgy, etc. If you find something so nifty-difty that you've gotta tell or you'll burst, why not just describe it in generic terms, no specific copyrighted names, prices, ordering information, etc. and just field the private e-mail. If I wanted commercials, I would watch TV :( !!!!! Sensibly yours, Tony Johnston Tired Chemist, Inspired Homebrewer anthony at chemsun.chem.umn.edu Return to table of contents
Date: Fri, 18 Jun 93 10:20:53 EDT From: chuck at synchro.com (Chuck Cox) Subject: Re: CP fillers Ed Westemeier sez... > > FWIW, I have heard that the CP filler sold by DeFalco is also excellent, but > I have never seen it and can't vouch for it. I can. I've had one for a couple of years now. It is an excellent unit, all stainless, and very sturdy. Highly recommended, and reasonably priced. - -- Chuck Cox <chuck at synchro.com> SynchroSystems / Riverside Garage & Brewery - Cambridge, Mass. Return to table of contents
Date: Fri, 18 Jun 93 11:03:15 -0400 From: jpgareri at acs.bu.edu (Joseph Gareri) Subject: Dogbolter Revisited In Tuesday's HBD (1162), I wrote in with questions about what to do with a Dogbolter kit. The response was, to say the least, overwhelming. I received 14 responses at last count. Some folks have asked for a summary, so I thought it would be in the interest of many to post it here. The comments were all favorable about Dogbolter being a beer worth making. Everyone who commented on the product said that it was quite close to the commercial product and very high in alcohol content (estimates of >8%.) Many suggestions were received about the supplied yeast. A few folks said they have used the yeast and have had very favorable results. The favorite substitute was London Ale yeast (Wyeast 1028) with Whitbread a favorite for dried yeast. Virtually no one suggested keeping with the recommended 2 1/2 lbs. white sugar. Although it was pointed out that some sugar is very common in English bitters. Suggestions ranged from 2 to 4 lbs. of either light or amber unhopped dry malt extract. The kit makes 3 gallons, but nearly everyone suggested making it into a five gallon recipe by adding additional malt or even an additional kit! Yikes! Additional hops were suggested to maintain the balance. Kent Goldings were the odds on favorite with Fuggles a close second. The recommendations were for 1/2 oz. (3-4%) per ounce of additional malt for the boil (60 minute boil was the most popular), and 1/2 oz. for the finish. Allen Wright suggested 2 tsp. Irish Moss thrown in during the last 15 minutes to help settle out the cold break. Conditioning was recommended according to normal procedures. I think that's about it. I hope I didn't miss too much of the valuable info. Thanks to all the respondents. I have saved all the text into a file that I'll keep for a couple of weeks. If anyone would like to see the unedited text, I'll happily mail it off to you. Joe Gareri Boston MA Return to table of contents
Date: Fri, 18 Jun 1993 08:13:55 -0700 (PDT) From: gregb at amazon.SanDiego.NCR.COM Subject: Pushing krauesen and cloudy beer issue - You know that crud that sticks to the side of your primary fermenter after the krauesen dies down? I figure this contains goodies that would aid flavor and aroma. Would it be beneficial to push this stuff back down into the wort? - With all this talk about clarifying agents, is really a big deal if your beer is cloudy or is this just an aesthetic issue? Greg Bruno gregb at amazon.sandiego.ncr.com Return to table of contents
Date: Fri, 18 Jun 93 10:10:08 PDT From: bgros at sensitivity.berkeley.edu (Bryan L. Gros) Subject: Aluminum cans A brief article in the paper yesterday (Thurs, San Fran. Chronicle) mentioned a study done by a company in Austrailia. They found that the levels of aluminum from non-cola sodas in cans was six times higher than the levels found in those sodas from bottles. For cola sodas, the levels of Al were three times higher in the drinks from cans. The sample size was something like 56 sodas, no absolute levels of Al were given although it said that the levels found were below acceptable health standards, and no other drinks were mentioned. Is the "fear" of aluminum due to the possible relation with Alzheimers? Is this also the reason that all homebrewers recommend stainless steel pots and kegs rather than aluminum, or is there some heat distribution advantage to SS? Or non-corrosive advantage? - Bryan Return to table of contents
Date: Fri, 18 Jun 93 10:40:08 PDT From: "Donald G. Scheidt" <dgs1300 at aw101.iasl.ca.boeing.com> Subject: Re: Miller Amber Ale In HOMEBREW Digest #1165, Fri 18 June 1993, it is written: >Date: Wed, 16 Jun 93 09:20 PDT >From: /O=vmspfhou/S=dblewis/DD.SITE=JSCPROFS/ at NASAmail.nasa.gov >Subject: Miller Amber Ale > > FROM: Dennis B. Lewis <dblewis at jscprofs.nasa.gov> > SUBJECT: Miller Amber Ale < a very good article on Miller's Amber Ale deleted to save space...> Now, after talking about local pride in our microbrewers, this is really something to behold. Think about these things. Remember when we couldn't get Munich Lowenbrau anymore, because Miller started producing it under license? (Poetic license, maybe, 'cause it ain't Lowenbrau, and I have some more of the Munich product at home to prove it!). Then there was Coors and its "Killian's Irish Red", licensed from a brewer that hadn't brewed in nearly three decades. Now, Miller's at it again, attempting to brew a "micro-killer". To give it due credit, it isn't bad, *as long as it is kept fairly cold* (cold ale?), but it does raise some questions. This is a very curious product: a top-fermented ("special" yeast, har har) ale that tastes worse as it approaches what a lot of us, as somewhat educated brewers and beer-drinkers, regard as proper ale temperature. Is this a point of pride? I realise that many Americans have a predilection for ice- cold beverages, but if a product is pitched to an "upscale" market-segment, why not go for the authenticity? The "Amber Ale" marketing pamphlet is so full of outright lies and false- hoods, it puts a certain Boston (tm) Beer (tm) brewer to shame. "Warm beer of England" is a misnomer. It isn't warm, it's at cellar temperature - I don't think of 55 to 60 degrees F as warm! So much for Miller's "master- brewers" (aka "marketing men" who have little or nothing to do with actual brewing). > "Ales are also the original beer of Europe." Hee hee hee. So when is Miller going to make gueuze-lambic, using locally- occuring wild yeasts? I can't wait to see their mass-market version of Ninkasi. :-) As long as we have the likes of Miller continuing to "educate" the public, we Americans will have a long ways to go before we can be justified in proclaiming our respective regions to be "Beer Capitol of the Universe". Homebrewers excepted, of course, since our brew-cellars are, in fact, the center of the universe. :-) BTW, at least the Miller Amber Ale didn't give me a headache. It's probably the first time in a long time that I actually finished a bottle of a mass- brewer's product, instead of feeding the rest to the drain. - -- __ | | __ /\ \ | Don Scheidt | /\ \ / \ \ | Boeing IASL, 777 Cab Development | / \ \ / /\ \ \ | dgs1300 at aw101.iasl.ca.boeing.com | / /\ \ \ / / /\ \ \ | | / / /\ \ \ / / /__\_\ \ | | / / /__\_\ \ / / /________\ | | / / /________\ \/___________/ | | \/___________/ Return to table of contents
Date: Fri, 18 Jun 93 09:27:38 PDT From: johng at adx.la.ca.us (John E. Greene) Subject: Miller ale. It's a bit amusing to read about what miller has written about the differences between ale and lager. I was talking with the owner of a brewpub here in Manhattan beach and he said that when he took a tour of the Miller Brewery he noticed that their fermenting tanks for the lager were at 65 degrees. He tried to ask about this but they would not give him an answer. I think that in Miller's case the only true difference between an ale and a lager is if the yeast ferments at the top or the bottom. - --john Return to table of contents
Date: 18 Jun 1993 14:54:24 -0400 (EDT) From: "PETER JUST, ANTHROPOLOGY, WILLIAMS COLLEGE" <Peter.Just at williams.edu> Subject: Downloading files from sierra.stanford.edu Forgive me if this an ignorant question, but: I have twice downloaded files via ftp from the /pub/homebrew directories of the sierra.stanford.edu server, specifically cats_meow.2ed.ps.Z. I take it from the extensions that this is a PostScript file that has been compressed with PKZIP. Yet when I try to unzip the file, PKUNZIP (2.04g) tells me the file I have is probably not a .zip file. What am I doing wrong? How can I get hold of these files? Thanks to one and all. Peter Just Williams College internet: peter.just at williams.edu Return to table of contents
Date: Fri, 18 Jun 1993 15:32:01 -0500 (CDT) From: BadAssAstronomer <STOREY at fender.msfc.nasa.gov> Subject: mashing and other mysteries of homebrewing Hi all I have a question that's been nagging at me a while. Since I brew only using syrup extract, the job of mashing escapes me. I thought about mashing once, even tried it. My problem; how in the hell do you keep mash at a constant temp? This technique evades me. I tried my best to play spin the dial on my electric stove to "maintain the mash at 142 F for 7 minutes and raise to 151 F for 3 minutes" etc. etc. This was quite impossible I found, but I did the best I could. The resulting beer turned out ok, but I chalk it up to a stroke of luck rather than skill. Would anyone out there like to enlighten me? Are these tuns I see for sale really worth it? Oh yeah, thanks to everyone's help and consolation about my American Ale yeast problem. Things *seem* to be going nicely, but I won't really know until that first taste :) cheers scott Return to table of contents
Date: Fri, 18 Jun 93 15:44:30 PDT From: bgros at sensitivity.berkeley.edu (Bryan L. Gros) Subject: hop extraction It is written that a high gravity boil will provide less hop bitterness in the finished beer than a low gravity boil. All the equations don't take this into account until you get up to 1.050 or so, presumably the loss of bitterness at lower gravity is not significant. So what happens if you boil the hops in plain water? Do malt sugars or proteins or such provide something necessary for bitterness extraction (iso-alpha acid conversion?)? For extract folks or folks with small pots (on a stovetop), it would be easier to boil the correct amount of hops in some water and just strain them into the cooled wort. It would even help some grain brewers who have problems siphoning off the hops (especially with pellets) into the primary. Of course, it can't be this easy. I was just wondering why not! - Bryan Return to table of contents
Date: Fri, 18 Jun 1993 17:00:52 -0700 (PDT) From: gummitch at techbook.com (Jeff Frane) Subject: Re: Weizen Yeast Jeff Griffin wonders: > > I just received a packet of a new Wyeast, #3068, which is described > as a single-strain Bavarian Wheat yeast(this is distinct from the > #3056, which has two strains). Does anyone have more information on > this strain? > You are fortunate enough to live somewhere where WYeast is testmarketing this strain. It is _not_ related to the 3056, but is a true weizenbier strain from Weinhenstephan. I have brewed with it once (got the yeast directly from Dave), and it is a truly exceptional weizen strain. If responses are good in the testing areas, I believe WYeast will add it to their regular list. I have had uniformly good responses on the beer; one knowledgeable importer (and several of his staff, who have reason to know), said it ws the spitting image of Schneiderweisse. I say this not to puff myself up, but to assure you that you have your hands on the real thing. - --Jeff Frane Return to table of contents
Date: Fri, 18 Jun 93 9:24:56 PDT From: deh at rocket.com (Dale E. Higgs) Subject: Re: Chili Beer > go, I tried Ed's chili beer, each bottle with a whole Jalapeno in it. > According to the label, Ed's is a microbrewery somewhere in Arizona (can't > remember where), but the beer was actually made by a contract brewer in > Indiana.(?) Anyway, I was excited to try this brew. I really like spicy > food, and I'm not above eating Jalapeno's with a meal. However, this beer was > so intensely hot that I couldn't get past the first sip!! What a surprise!! ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ You wimp! Ed's Cave Creek Chili Beer (It has a serrano in it, not a jalapeno) is merely soothingly warm. You should try my chili, it hurts at both ends :) BTW, don't eat the serrano in ECCCB, all the good stuff has leached out into the beer and the serrano is horribly bland and disgusting. A couple years ago I ran across a Northwest microbrewed (real microbrewery) beer with chipotle (smoked jalapenos) added for flavoring. Whoever came up with it did it right, as the beer was light and refreshing with just a hint of warmth and smokiness at the back of the mouth. I had forgotten about that beer until I saw this topic go by. As I recall, the flyer at the pub (Engine House #9 in Tacoma, WA) stated that they only added 2 or 3 chipotle per 15 gals and let it sit for a month or so (don't hold me to that). I think I'll give this a try next batch. A nice lite :) beer with a couple chipotle dropped in for the secondary. BTW, chipotle can be found at some Mexican food places, or you can do like myself and make them at home. Just buy (or grow) some nice hot jalapenos, and put them in the smoker over mesquite until they dry out. Grind them to dust for a seasoning, or leave them whole for your beer! Bis Spater. Dale (deh at rocket.com) Return to table of contents
Date: 19 Jun 93 11:52:03 EDT From: Jim Kirk II <70403.3157 at CompuServe.COM> Subject: Hopping Rates I have tasted beers in the past that were very bitter at first, but finished sweet afterwards. Ok, yes, I'll admit it. I'm a hophead. My beers start out bitter and finish bitter. Problem, the lady doesn't like this. Any idea how I can brew a beer that is bitter at the start, then has a sweeter aftertaste? <JK> Return to table of contents
Date: Sun, 20 Jun 93 07:50 CDT From: arf at genesis.mcs.com (Jack Schmidling) Subject: Business opportunity, Devils >From: "JSDAWS1 at PROFSSR" <JSDAWS1 at PB1.PacBell.COM> >Recently, a freind & neighboor bought a JS Maltmill <tm>. It's a WONDERFUL device and I definitely intend purchasing one.... but ONLY after I figure out how to motorize it. Any ideas? I'm the kinda guy who grabs the correct end of a screwdriver about 50% of the time so it's got to be an easy, off-the-shelf kind of solution. I have responded in private but I see here a business opportunity for some budding entrepreneur out there. For reasons of my I own, I have decided that I do not want to sell motorized mills. However, there is a substantial market out there for serious homebrewers and small breweries that would rather make beer than motorize mills. At the present time (see comments below), there is no viable alternative to the MM for the low budget operation and someone who wanted to repackage them could start a nice cottage industry. >From: Nick Zentena <zen%hophead at canrem.com> > If you've never seen it {Philmil} then your post sure sounds like FUD! Why don't you ask someone who has seen both mills to compare? Na that would have cut down on your chance to advertise.-( I don't think that was called for. My post was based on published data. However, I now own a Philmil and can speak from personal experience but I think it would be more prudent to let the market speak for itself while keeping in mind that one must drive a VW to appreciate a Porsche. As Perot likes to say, the Devil's in the details, and there is one "detail" that I will point out in light of the above discussion on motorizing mills. The PM has NO BEARINGS. The steel roller turns in a 1.5" hole drilled in the steel support housing. The manufacturer's suggestions on how to motorize it must be taken with a large grain of salt. BTW, what's a FUD? >From: "Bob Jones" <bjones at novax.llnl.gov> >Jack S. experiments with filters is very interesting. Micah claims he has seen no problems with head retention using the supposed .5um filter and I have seen poor clarity with it as well when pushing some beers through it. > Fix has recommended against this small (.5um) filtration..... I wonder if we havn't got an apples and oranges problem here. I never asked George what type of filter he was using. He gave me the manufactuere and part number but not the type but I bought something else. As there are many differnt types of filters, pleated, string wound, ceramic, flat, plate, just to name a few, it seems that we need to know which type we are talking about to get any sense out of this discussion. I have little confidence in the numbers quoted for string wound filters and have no experience with any other. js Return to table of contents
Date: Sun, 20 Jun 1993 10:03:02 -0700 (PDT) From: Paul dArmond <paulf at henson.cc.wwu.edu> Subject: re: Headaches There was a post-thread some time ago about headaches. There are some substances, not higher alcohols / fusel oils, that some people are allergic to and causes headaches. Cheap red wine frequently has a lot of this. Heck if I can remember the name. If anybody has the last year's HBD in grep-able form, look back there. Anyway... I wonder if the headaches correlate to the brewers who do fast high gravity brews (the so-called "beer concentrate") and then dilute it for retail distribution. This could have all sorts of strange things going on in the fermenter... Paul. Return to table of contents
Date: 21 Jun 1993 7:49 EDT From: dab at cc.bellcore.com (dave ballard) Subject: re: 5 liter kegs hey now- most of the people who responded to my request for info about 5 liter kegs (thanks guys) wanted me to forward anything else i found to the hbd. here is something from r.c.b: later dab - --------------------------------------------------------------------------- Article: 14753 of rec.crafts.brewing Path: walter!rutgers!uwm.edu!linac!att!bgsuvax!bear From: bear at andy.bgsu.edu (Michael D. Bear) Newsgroups: rec.crafts.brewing Subject: 5 Liter mini-kegging system Message-ID: <C8qE1n.E47 at andy.bgsu.edu> Date: 16 Jun 93 20:24:57 GMT Organization: Bowling Green State University, Ohio 43403. Lines: 44 I recently purchased the 5 liter mini-kegging system advertised by Brew Ha Ha in Pennsylvania. I received the kegs in a box that looked kinda like it was made for them. The kegs are essentially metal cans made to look like little barrels. The order taker said the cans are plastic lined and the best way to clean them is with a bottle brush bent like a carboy brush. The cans are painted up with a logo, government warning, etc. They were used by a microbrewer called Happy Valley. The tap is a plastic snap on piece that has a knob to control the CO2, a screw on cap for the CO2 cartridge and a spout with dispenser knob. The keg has a 1" hole in the top and you put a rubber stopper containing a plastic plug into it. When installing the tap, you use the end of the tap to push the plug into the keg. it just falls into the beer. You fish out the plastic plug when the keg is empty. I just used the kegs for the first time early this week. I only used 2 of the kegs and bottled the rest because I wanted to test how they worked and compare them to the same beer in bottles. Also, I have another batch in secondary that I will do the same thing with. They are used much like a large keg. Use half as much priming sugar as usual, fill and plug the kegs. Set them aside for conditioning for 2-3 weeks. They are conviently sized to put in the fridge beside the milk weather they are tapped or not. They are about 13" high with the tap attached. This was a little too tall for my fridge. I had to remove a shelf. I tried "Force carbonating" one of mine. I attached a cartridge, turned the pressure all the way up and then shook they keg every few minutes for about an hour. I then put it in the fridge with the pressure on. The next morning, the beer was carbonated and the cartridge was empty. I attached another one and was able to dispense carbonated beer immediately. The cartridges are 8g seltzer cartridges. The warn against using CO2 cartridges for guns because they contain oil. It comes with 10 8g cartridges and extra packages of 10 are $4.95. They will also accomodate a larger 16g cartridge but I don't know where to get those. I am quite happy with the system even though I haven't used it much yet. If anyone wants more info, just e-mail me. - -- Michael D. Bear bear at andy.bgsu.edu Computer Technician ..!osu-cis!bgsuvax!syrinx!root Bowling Green State University bear at bgusopie.bitnet (419) 372-2104 - ---------------------------------------------------------------------------- Return to table of contents
Date: Mon, 21 Jun 1993 07:46:05 -0500 (CDT) From: dspalme at mke.ab.com (Diane Palme x2617) Subject: Hop Report and Apple Weiss Howdy Y'all! Well, as the month of June speeds by (and my e-mail box fills with requests), I thought I would throw a quick hop update onto the HBD. Bear with me, I only get to visit the plants about once a week. If you will recall, I planted three varieties of rhizomes, Hallertau, Tettenanger, and Cascade. I am *thoroughly* amazed at the speed and vitality of the Hallertau plant. I am anxiously awaiting the frantic phone call from my parents saying that they are being held hostage by this vine. It is truly growing in leaps and bounds! The Cascade is running a close second and is just about ready to train to a horizontal wire. These plants are quite stupid, however, in that they refuse to wrap themselves around a horizontal wire. They seem to be much happier running up the poles sunk next to the root. Hmmmm. Maybe they just need a good talking to! As for the Tett, well, I guess the operative word here is "runt." It is not more that 4" high and moving *very* slowly. It receives the same care and fertiziling as the other two, but it just seems like it doesn't want to come out and play with the other kids. Any suggestions? As for the weather up here, it has been remarkably cool and quite wet the past few weeks. The temperature has finally started to move toward the 80 degree mark (on a relatively consistent basis), so maybe that has some- thing to do with it. Nevertheless, I look forward to some kind of harvest in a few months. As a quick side not (directed to those of you who have been growing/harvesting/brewing with hops for the past few seasons), how does one calculate the alpha acid content in these hops? Is trial-and-error (read: Newton-Raphson method of interpolation) the only way to go? Any advice will be appreciated. [switching gears] I was fortunate enough this past weekend to attent the Beer Festival in lovely Kenosha, Wisconsin, and sampled a beer from the Cherryland Brewery in Sturgeon Bay, WI. It was an Apple Ale and was absolutely superb! Being the cider fan that I am, I was wondering if any of you brewers out there could give me some net.wisdom on how to brew a good apple beer. I am considering using a standard weiss base and adding copious amounts of apples to the ferment. Standard practice seems to recommend something on the order of 4# of apples (Macintosh, Granny Smith, Washington), I prefer Courtland, to the wort after the boil is complete, allow to steep ~15 minutes, dump the mess into a plastic fermenter (or carboy if one can get the apple pieces through the opening) and then rack off of the fruit once the primary ferment is complete. Does this sound plausible? Any better recommendations for a base? Once again, any info/suggestions will be appreciated and a summary will be posted if there is interest. Well, this concludes the monthly Hop Report and CFD on Apple beers. I apologize for the length of the posting, maybe I should do this more often! :-) Thanks in advance ... Diane Palme (dspalme at mke.ab.com) Dept. Engineer, Central Inspection Allen-Bradley Co. (414) 382-2617 - -- " God does not play dice " - Albert Einstein " Nor is it our business to proscribe to God How he should run the world. " - Neils Bohr Return to table of contents
Date: 21 Jun 1993 09:09:09 GMT From: "Tom Stolfi" <WAUTS at CWEMAIL.ceco.com> Subject: Request for Kegging Info From: Tom Stolfi I have received the ultimate gift for a combined Father's Day & Birthday, my beautiful wife has set aside enough $$ to get me a kegging setup. I have been reading the HBD for 6 months or so and have an idea of what I want. However, I am asking the experts on HBD for any advice on equipment, suppliers, setup or anything else to do with kegging. Thanks in advance. Tom Stolfi wauts at cwemail.ceco.com p.s. Please include your full email address, our reply feature is not working. Return to table of contents
Date: Mon, 21 Jun 93 09:56:31 -0500 From: gjfix at utamat.uta.edu (George J Fix) Subject: References on sanitation The diversity of opinion regarding appropriate strengths to use for sanitizing solutions is reflected in the diversity of results found in the professional literature on this subject. For example, data that was produced for the general food industry (copies of which can be obtained from bleach producers) show that highly dilute sodium hypochlorite solutions can be very effective with selected bacteria. To cite an example, one study showed that a solution with a 5 mg/l OCl concentration yielded a total kill (sorry for the barbaric language!) of E. Coli with contact times ranging from 5 to 10 mins. With the bleach I use, a OCl fraction of 5 mg/l is achieved by diluting ~1 tsp. of bleach in 5gals., i.e., ~1/30 oz. per gal. Different studies using different microbes found an altogether different situation. Permit me to cite the following, which appeared in a professionally peer reviewed journal devoted to brewing: J. Sorenson, et al, "Pediococcus: Some Biocide Studies", Brewers Digest, January 1983. This study looked at the effect of various halogens (chlorine, iodine, etc.) had on selected strains of pediococcus. The following is but one of their findings for P. pentosaceous, a highly feared brewery contaminant. They propagated this microbe, and then added sodium hypochlorite at various levels of OCl. Their criteria was very simple. They just observed if the microbes continued to grow ( noted with a + in the below), or stop growing (noted with a -). Exposure Time (mins.) OCl (mg/l) .5 1. 5. ------------- ----- ----- ----- 75 + + + 100 + + - 150 - - - The condition of no growth is a minimal one, what we want is a complete kill. Nevertheless, I find the results interesting. It should also be pointed out that various strains of lactos and pedios vary greatly in their resistance to sanitizers. They also vary greatly in their effect on beer flavors. The very special lacto strain used by Celis yields a gentle and mellow sour, while P. pentosaceous produces, among other things, an extremely unpleasant acid flavor. With all this diversity is it no wonder people disagree. BTW Brewing Techniques will carry two articles on sanitation. Vol. 2 is by Dr. Maribeth Raines, and is oriented to beginning and intermediate homebrewers. Roger Bergin's article will appear in a later issue, and is oriented to advanced homebrewers as well as microbrewers. It should also be noted that all full length articles in BT are confidentially reviewed by professionals in brewing. In a post that will come out, or already has come out, Phil Hultin argues that my chlorine calculations had a serious error. From the point of view of equilibrium chemistry he is absolutely right. In fact, this argument has been made to me a number of times in the past by professional chemists. The reason I do not accept it is that it is missing the biological connection. What is being asserted by me is not that OCl ions are completely disassociating, but rather as the calculated OCl fraction of the solution increases, so does the sanitizing power. Similar calculations were used in the reference cited above. Remarkably, while there is general agreement about the effect of chlorine being the oxidation of microbe cell walls, the actual mechanisms are still unclear. The observation that equivalent OCl fractions track strength is completely empirical. Thanks to Phil for interesting e-mail. I find myself in the awkward position of having an embarrassing number of projects with late Aug. and early Sept. due dates that need an embarrassing amount of work if they are going to be successful. Thus I need to hide for a couple of months, and work my at #$% off. I hope everyone (especially Don O'Connor) has an eventful. fun, and rewarding summer. See you folks in Sept. George Fix Return to table of contents
Date: Mon, 21 Jun 1993 09:03:15 -0700 (PDT) From: "Bob Jones" <bjones at novax.llnl.gov> Subject: Hop utilization calculation credits I would like to comment on the following note from Mark Garetz: >BTW, Rager credits not only Eckhardt for the calculations, but >also Byron Burch and Dave Miller. Eckhardt only gets sole credit >for the table of beer styles vs. IBUs. I spoke with Byron about hop utilization calculations about 5-6 years ago. He said he had just received a letter from Gary Bauer. He sent me a copy of this note. In that note Gary had very crude numbers for about 4 or 5 boil time with percent utilization. Byron's hop utilization numbers (essentially Gary's numbers) started appearing right after that. I wonder where Gary's numbers came from? I would suspect he is THE source for ALL the current guestimates. Bob Jones Return to table of contents
Date: Fri, 18 Jun 93 14:06:52 PDT From: hartman at varian.CSB.Varian.COM (John Hartman) Subject: Phone number for Dewolf-Cosyns? Fellow Digesters-- I have a homebrew store in my area who'd like to carry Dewolf-Cosyns' Belgain malts. Does anyone have a phone number or address for them or their U.S. distibutor? Much thanks in advance, John hartman at varian.varian.com Return to table of contents
Date: Mon, 21 Jun 1993 09:46:05 -0700 (PDT) From: gummitch at techbook.com (Jeff Frane) Subject: Those Pesky Siphons In regard to the discussion (more or less perpetual) about starting siphons, I have a STRONG recommendation. Although I was initially skeptical about the need for such a device (having always used a turkey baster), I had a succession of problems startings siphons and broke down and bought a Sucker (TM). Jeeze, I think I've got the nae right. At any rate, the device is based on a large syringe, with a y-connector and check valves that ensure the siphon flow continues in the proper direction. It is not only useful -- unbelievably so -- for starting siphons, but can also be used for pulling samples from carboys, transferring the sample directly into a graduated cylinder, for example, for taking hydrometer readings. Because it's entirely made of plastic, it's easy to sanitize (I use iodophor). Best of all, you can get it by asking right here on the net: it's made by the never-advertising-in-the-Digest Russ Wigglesworth. Send your inquiries to: rad_equipment at rad-mac1.ucsf.EDU This is an unsolicited endorsement. Really. I can hear Russ blushing all the way up here in Portland. - --Jeff Frane Return to table of contents
End of HOMEBREW Digest #1167, 06/22/93