Homebrew Digest Wednesday, 3 July 1996 Number 2092

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   FORUM ON BEER, HOMEBREWING, AND RELATED ISSUES
        Shawn Steele, Digest Janitor
        Thanks to Rob Gardner for making the digest happen!

Contents:
  Monterrey, Mexico (RANDY ERICKSON)
  tut beer (Rscholz at aol.com)
  Yeast starters ("Craig Rode")
  Poor Man's *REAL* Counterpressure Bottler (KennyEddy at aol.com)
  Re: How to clean up a boilover? (korz at pubs.ih.lucent.com)
  maltose syrup (Andy Walsh)
  Shawn -Check of the text reader per My discussion ("David R. Burley")
  RE: KEG CONVERSION, help needed ("CHUCK HUDSON, ER LAB 3-2865")
  Open  Fermentation (Carrick Legrismith)
  Sparge water temperature (rlabor at lsumc.edu (LaBorde, Ronald))
  Vanilla Beer??? (tthomas3 at ford.com (Tim Thomas))
  Adding Salt to Sweeten?!?!?!?!! (aesoph at ncemt1.ctc.com (Aesoph, Michael))
  flavored extracts (toml at fcmc.COM (Tom Lochtefeld (Risk Mgt)))
  Canned Skunk ("Kirk Harralson")
  Wisconsin Plate "ZYMURGY" (rlarsen at pyrotechnics.com (Rich Larsen))
  stuck fermentation ("Allan Rubinoff")
  Re; hops drying (Bob Waterfall)
  gelatinization/German brewing (Jim Busch)
  Rob's Brown Ale ("Barry Wertheimer")
  Lazy Homebrewer (Troy)
  Re: competetive inhibition by maltose, heat-shock ("Tracy Aquilla")
  re:Drying hops (Kurt Schilling)
  Re: Hops Drying (Brian Cornelius)
  Re: The Clever Tongue/Iodophor/Igloo Coolers/HSF? (Bill Rust)
  RE:  Keg Conversion Help ("Palmer.John")
  RE: stuck fermentation <robe at cadmus.com> ("Decker, Robin E.")
  HSA & astringency / apple cider recipie ("Keith Royster")
  MP/TN Valley Hombrewers Competition (Barry Wertheimer)

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---------------------------------------------------------------------- From: RANDY ERICKSON <RANDYE at mid.org> Date: Tue, 2 Jul 1996 17:26:34 -0700 Subject: Monterrey, Mexico Greetings: I just found out this a.m. that I will be traveling to Monterrey, Mexico next week. The visitors guide sheet I got shows beer as a leading industry down there. Any Don't Miss/Don't Bother recommendations? Thanks All -- Randy in Modesto, California Return to table of contents
From: Rscholz at aol.com Date: Tue, 2 Jul 1996 16:49:00 -0400 Subject: tut beer Brewsters; here's the latest from Reuters on the egyptian beer. ( apologies for copyright infringment) LONDON, July 2 (Reuter) - Drinkers with a taste for the ancient and exotic -- not to mention the extremely expensive -- got a chance on Tuesday to sample a beer brewed to a recipe dating from the time of the Egyptian Pharaoh Tutankhamun. Billed as the world's most costly beer, the first bottle of Tutankhamun Ale went on sale at the luxury London department store Harrods priced at 5,000 pounds ($7,800). The remaining 999 bottles in the batch will be sold for 50 pounds each. A store spokesman said 200 bottles had already been snapped up by curious customers. The ale, developed by an Egyptologist, two scientists and Britain's largest brewer Scottish & Newcastle, has been dubbed the "Liquid Gold of the Pharaohs". It is based on analysis of sediment from jars found in a brewery inside the Sun Temple of Nefertiti, queen of the Pharaoh Akhenaten, believed to be Tutankhamun's father. The team could only gather and grow enough of the right raw materials to brew 1,000 bottles of the beer, which will be sold to fund further Egyptological research. Harrods' Egyptian owner, Mohammed Al Fayed, donned an ancient Pharaonic headdress to pose for the cameras as he cracked open a bottle of the sweet-tasting brew. Fayed said he was delighted to offer his customers a taste linked with a civilisation 5,000 years old. "While the ancient Britons were clothed in animal skins and daubing themselves with woad, the Egyptians were inventing mathematics and perfecting astronomy," said Fayed, who recently failed in an attempt to take up British citizenship. The individually numbered bottles of beer are being sold in special wooden boxes. The labels read "Tutankhamun Ale" with "The Beer of His Majesty" written over the top in hieroglyphics deluking; richard l scholz still extact brewing but working up to all-grain soon. Return to table of contents
From: "Craig Rode" <craig.rode at sdrc.com> Date: 2 Jul 1996 16:10:57 -0600 Subject: Yeast starters Thanks for all the responses regarding my water. (I posted too low a calcium, I was going from memory.) The consensus is that for tap water coming out at pH 7.8, a dash of lactic acid in the sparge water should help. Now on to another question. Like the rest of you, I found a huge increase in my beer's quality when I went to liquid yeast. For a starter, I have been using standard 22 oz bottles. I boil the bottle, boil the extract, add hot water to hot extract, cool, pitch the pouch, and wait 24 hours. Works great. However..... It occured to me I am adding an extra step. What if I: 1) Sanitized my carboy 2) Boiled the extract 3) Cooled the extract 4) Dumped that into my carboy 5) Pitched the yeast 6) Waited a day, then brewed, and siphoned my cooled wort on top of the waiting hungry yeast? Isn't the effect a small starter in a large bottle? Why don't I do it this way? Do you? Would the risk of infection be increased because I can't boil a carboy? And while we are (or I am) on the subject, how many of you use the sediment from your last beer to create a starter for your next beer? How many generations would this work? Would the yeast autolyze (er...eat itself) while it was waiting in the bottle? Would it work better if I primed with DME instead of corn sugar? Does it matter? Sounds like these are for you, Tracy...... Craig Return to table of contents
From: KennyEddy at aol.com Date: Tue, 2 Jul 1996 16:48:55 -0400 Subject: Poor Man's *REAL* Counterpressure Bottler Most of us are familiar with the "Poor Man's Counterpressure Bottler" (PMCPB), featured within the last year or so in Zymurgy and Brewing Techniques, among other places. I believe I have a nice easy enhancement to this already-effective design that makes it a true counterpressure bottler. Recall some time ago we were playing with tire valves stuck in 1/2" holes drilled in PET bottle caps (well, *I* was anyway), and using that to "pressurize" keg-filled to-go bottles. Turns out these same tire valves mate perfectly with the inflating needles used to pump up footballs etc. Just screw the threaded part of the needle into the rubber underside of the valve. The next trick is to bore a small hole alongside the main hole in a #2 (is it?) drilled stopper -- the kind that fits in a bottle opening. I used a red-hot sewing needle but perhaps you can come up with a better way, or drill out an *undrilled* stopper with an off-center 3/8" hole and perhaps a 1/16" or smaller hole. It needs to be small enough diameter that the valve needle "seals" as it's inserted. Make the hole such that it doesn't poke out until it gets to the bottom -- no peeking through the sides! Push the needle through the stopper from the top (outside the bottle) just so that the hole at the end of the needle is completely visible outside the other end (inside the bottle) of the cork. Now assemble the rest of the PMCPB as normal. THe valve and the beer line will jockey for position but there's enough room for everyone; it all seals inside the cork anyhow. You'll need an air chuck on a hose attached to your keg. I leave one permanently attached (along with a clamp since they do leak). Now, you can purge and pressurize your bottle before filling. Purge by leaving the stopper loose while giving it gas, or do a few pressurize / burp cycles. Now fit the stopper in tightly and pressurize for real. Open the beer valve; you'll get a little beer since some pressure escapes when you remove the chuck. Now, to fill, use your fingernail to press the pin in the valve slightly and slowly to gradually relieve the pressure. The beer flows on its own as the pressure is relieved. When the bottle is full, close the beer valve, and press the valve pin completely to relieve the rest of the pressure. I just finished bottling four APAs for our club's July 13 competition, and regret that I didn't bottle more as it was EASY. Minimal mess, about 10 minutes out of my busy (yawn) day. Much easier than those gigantic commercial C3PO-looking monstrosities that cost $50 or more. BTW I used room-temperature bottles and normal keg pressure (~10 psi) and had absolutely NO foaming from a well-carbonated beer. Ken Schwartz El Paso, TX KennyEddy at aol.com http://users.aol.com Return to table of contents
From: korz at pubs.ih.lucent.com Date: Tue, 2 Jul 96 16:35:06 CDT Subject: Re: How to clean up a boilover? Sue and Joe write: >Does anyone have a good cleaning product that can get the >carmelized wort off my cooking stove? I spray some "Fantastik" or "Formula 409" on the stains, let them sit for an hour and then scrape off the crud with a razor blade. It may take several repetitions. Be careful with that razor blade and wait till the store is cool. Al. Al Korzonas, Palos Hills, IL korzonas at lucent.com Return to table of contents
From: Andy Walsh <awalsh at crl.com.au> Date: Wed, 03 Jul 1996 10:44:27 +1100 Subject: maltose syrup Hi, Greg King asked about maltose syrup, as recommended by Graham Wheeler. Liz Blades recommended LME or barley syrup as a substitute. I have Graham Wheeler's books (not at hand), but I seem to remember that he recommended glucose as a substitute if maltose is unavailable? This would make sense, since maltose is enzymatically broken down by the yeast to glucose, and is 100% fermentable. LME or barley syrup contains a multitude of sugars and dextrins, some of which are unfermentable. Of course you can use these, and make good beer, but I think that glucose would give results much closer to the intention (but certainly not identical). - -- Andrew Walsh CHAD Research Laboratories Phone (61 2) 212 6333 5/57 Foveaux Street Fax (61 2) 212 1336 Surry Hills. NSW. 2010 email awalsh at crl.com.au Australia. Return to table of contents
From: "David R. Burley" <103164.3202 at CompuServe.COM> Date: 02 Jul 96 21:13:36 EDT Subject: Shawn -Check of the text reader per My discussion Shawn, This is to test what happens if the word "test" appears in the body and not the subject line. Dave Burley Return to table of contents
From: "CHUCK HUDSON, ER LAB 3-2865" <CHUDSON at mozart.unm.edu> Date: Tue, 2 Jul 1996 19:41:44 -0600 (MDT) Subject: RE: KEG CONVERSION, help needed You might try using a manifold type of lauter tun. I have used one for years and I find it one of the best projects I have done. Basically it is a length of copper tubing sized to fit your existing hole and wraped once around the bottom of the keg and then formed to fit as flat as possible. after the initial fitting is done remove tjhe manifold and grab your trusty hacksaw and cut slots HALFWAY thru the pipe. space the slots between 3/8 of an inch to 1/2 of an inch all along the pipe. leave about 1-1 1/2 inches at the very end to fold over itself to seal the end of the pipe. Return to table of contents
From: Carrick Legrismith <hiscope at c4systm.com> Date: Tue, 02 Jul 1996 22:33:44 -0700 Subject: Open Fermentation The last two batches I have altered my fermentation procedure with positive results. After letting the trub settle in the kettle I transfer the wort into glass carboys where it sits for four more hours. I then transfer the clarified wort into an open fermenter, which I made from a modified keg, on top of my yeast. Before this, I settled in the kettle, transferred to the carboys, pitched and then aerated. My new system is much easier, is more enjoyable, allows me to easily to control trub and sample the product as it progresses. Who came up with the closed fermentation system anyway? I say kick the blow hose and try it--you won't go back. Carrick Legrismith Hiscope Brewery hiscope at c4systm.com Return to table of contents
From: rlabor at lsumc.edu (LaBorde, Ronald) Date: Tue, 2 Jul 1996 23:02:22 -0500 Subject: Sparge water temperature Hi, I am not sure about the correct temperature to use for the sparge water. I thought that the temperature of the grains while being sparged should be at about 160-165 F. If I use 175 degree water in the sparge supply tank, then the measured temperature of the water in the mash tun varies all over the place. First let me tell you that I haven't done a mash-out, but just mash at 155 degrees for this IPA and then start the sparge after one to one and a half hours. I measure the water above the grains and it will be about 160 degrees and slowly rise to 175 degrees about the time the sparge is about done. If I measure down into the grains, I measure 155 starting and slowly rising to 165 or so about the time the sparge water has all run out. So I have never seen any mention of a difference in sparge water temperatures depending on wether a mash-out is done or not. Could I use much hotter water at the start of sparge to quickly get the grains up to 165 and then as the sparge progresses let the temperature drop? Also I have never been clear on exactly when to use a mash-out and why to use a mash-out. Should I always use a mash-out? Using an Igloo 10 gal round cooler for the mash tun and it works great - after a 1 or 1.5 hour mash and a couple of stirs the temperature drops only 2 degrees Farenheight. Any help or clarification here would be greatly appreciated! Ron Return to table of contents
From: tthomas3 at ford.com (Tim Thomas) Date: Wed, 3 Jul 1996 07:22:15 -0400 (EDT) Subject: Vanilla Beer??? I am somewhat new to homebrewing and have a basic question. Has anyone tried to make a vanilla beer, using either vanilla extract or some form of the vanilla bean? If so, how did it turn out? Thanks in advance for any replies. Timothy J. Thomas Return to table of contents
From: aesoph at ncemt1.ctc.com (Aesoph, Michael) Date: 03 Jul 96 08:49:33 EDT Subject: Adding Salt to Sweeten?!?!?!?!! Dear Collective: I am in the process of making some rhubarb wine (mmmmmm!!!)... Anyway, it's a little bit bitter right now, and I'd like to sweeten it up a little. A friend of mine suggested adding salt to sweeten it.... Makes sense as salt can be used to sweeten green apples.. Any comments on what that will do to the yeast??? I am concerned because I want to make the wine sparkly - that means bottling it like beer with priming sugar. ================================================== Michael D. Aesoph Associate Engineer ================================================== Return to table of contents
From: toml at fcmc.COM (Tom Lochtefeld (Risk Mgt)) Date: Wed, 3 Jul 96 08:45:51 EDT Subject: flavored extracts Has anybody had any experience with adding flavored extracts, liquers etc. during the bottling stage? I was thinking it might be interesting to add some strawberry margherita syrup or something to a couple of six packs as I bottle my latest batch of pilsner but I am worried that the extra sugar might cause over-carbonation. Any comments or suggestions would be welcome. Return to table of contents
From: "Kirk Harralson" <kwh at smtpgwy.roadnet.ups.com> Date: Wed, 03 Jul 96 09:10:21 EST Subject: Canned Skunk Over the years, I've been educated by the HBD about light-struck beers in clear or green bottles giving that familiar skunk smell. Heineken (sp?) is a particularly popular example of this. On a return flight last week, I asked what beers they had, and Heineken was the only choice other than Budmilloors, so I took it. I don't know if it is an airline rule or not, but all beer was served in cans, not bottles. The funny thing is, when I poured the beer, the skunk smell was present! It was not as pronounced as the bottled version I'm used to, but it was definitely there. I think it's a pretty safe assumption that light does not get through aluminum cans, so I have to wonder when the beer is exposed to light. This also made me wonder about the bottled version. When I buy a case of Heineken, it's sealed in a cardboard case. Again, I assume that not much light is going to get through there. If these are packaged at the brewery, when are the bottles exposed to light? Again, I'm not questioning the light-struck phenomenom -- that has been explained ad infinitum in past digests, and I accept it at face value -- I just wonder when and how it occurs. Kirk Harralson Bel Air, Maryland Return to table of contents
From: rlarsen at pyrotechnics.com (Rich Larsen) Date: Wed, 3 Jul 1996 07:50:30 -0500 Subject: Wisconsin Plate "ZYMURGY" Does anyone know the person that owns the Wisconsin Licence plate "ZYMURGY"? I saw him driving down I-294 in Illinois on 6/29. I tried to get his attention to give him a homebrew, but.... => Rich <rlarsen at pyrotechnics.com> ________________________________________________________________________ Rich Larsen, Midlothian, IL. "Spice is the Variety of Life" Want to learn how to Brew Beer at Home? Check out Homebrew University BBS at (847) 970-9778 ________________________________________________________________________ Return to table of contents
From: "Allan Rubinoff" <allan_rubinoff at mathworks.com> Date: 3 Jul 1996 09:49:00 -0400 Subject: stuck fermentation In HBD #2091, Rob Emenecker writes about a "stuck" fermentation: > Aerated for 15 minutes with an aquarium pump then pitched 2 packets of M&F > rehydrated yeast. Yeast was pitched at 7:00 PM on Sunday and the brew's O.G. > was 1.049 (70% extraction efficiency). > > Monday morning the brew was happily bubbling away. Monday afternoon there was > no activity whatsoever. Cripes! What could have gone wrong? Is My Beer > Ruined? In a fit of despair I paddling/splashing the hell out of the brew > for about 20 minutes (assuming that it was not properly aerated). Sorry to say this, but your beer *was* probably fine, and you may have ruined it by trying to fix it. Your beer probably started fermenting overnight on Sunday and was largely done by Monday afternoon. This can happen, especially with dry yeast. Aerating at this point was a mistake; your beer is probably going to be severely oxidized. A better strategy would have been to take a hydrometer reading to find out if the beer had in fact fermented out. Allan Rubinoff rubinoff at mathworks.com Return to table of contents
From: Bob Waterfall <waterr at albany.net> Date: Wed, 3 Jul 1996 10:13:00 -0400 (EDT) Subject: Re; hops drying Dan Ritter asked: >planning to air dry them [hops] slowly in my well ventilated and warmish garage >(75-80 F in the late summer early fall and fairly dry climate). I have >built several large framed screens that will hang from the ceiling. It should be no problem. I've been drying my hops for the last three years in the garage or cellar for the last three years. I use 1 or 2 screens from the back door since it's getting to be time to switch to the storm windows anyway (well, maybe it's a little early). I spread the hops out so they are only one or two deep on the screen. I give them a stir every day like you plan. They dry out in a few days to a week here in upstate NY (not a dry climate). I then package them in zipper *freezer* bags squeezing out as much air as possible and store them in the freezer of the beer fridge. Air does get into the bags and starts to degrade them eventually (6 months or so) even in the freezer. I usually end up giving away half of them since most of the crop is Nugget that only take an ounce or so to really bitter up a batch. Bob Waterfall <waterr at albany.net>, Troy, NY, USA Return to table of contents
From: Jim Busch <busch at eosdev2.gsfc.nasa.gov> Date: Wed, 3 Jul 1996 10:29:58 -0400 (EDT) Subject: gelatinization/German brewing There has been some discussion as to the Gelatinization temps of barley. This is from Molls book Beers and Coolers: paraphrased: Barley starch consists of large granules of starch (15-40 um), having a gelatinization temp between 57-59C, and small granules (1-6 um), having a gelatinization temp of 59-65C. Small granules comprise 90% of the total number of starch and 10% of the weight. So the bulk of barley starch will gelatinize close to the optimum temps for beta amylase. As for German brewing and natural carbonation, Im suprised nobody has mentioned the primary method of carbonation: spunding the tank. This is simply closing off the tank vent within 1P or so of terminal gravity. This is one of the main benefits of using a unitank, or pressure vessal of any kind. Jim Busch "This isnt rocket science, but I do that too" Return to table of contents
From: "Barry Wertheimer" <wertheim at libra.law.utk.edu> Date: Wed, 3 Jul 1996 10:32:12 EST Subject: Rob's Brown Ale Rob Emenecker asks the age old question.... "Is My Beer Ruined"! > I brewed an English Brown Ale this past Sunday <snip> then pitched 2 >packets of M&F rehydrated yeast. Yeast was pitched at 7:00 PM on >Sunday <more snipped> > > Monday morning the brew was happily bubbling away. Monday afternoon > there was no activity whatsoever. Cripes! What could have gone > wrong? Possibly nothing. Your beer may be done fermenting. With 2 packs of dry yeast and a warm summertime fermenting temperature (you did not tell us fermentation temperature), the yeast may have gone right to work. Have you checked the specific gravity or tasted it? Also, what did it look like when it stopped bubbling? Had there been a good head of kraesen that had already fallen back? What does the surface of the beer/wort look like? Another possibility is that the beer is still fermenting, but the CO2 is escaping other than through the airlock. Again, looking at the stuff, hydrometer readings, and/or tasting should help you tell whether fermentation is going on or not. Of course, if the beer was done, that extra aeration on Monday afternoon probably wasn't a good idea. Barry Return to table of contents
From: Troy <treynard at fast.net> Date: Wed, 03 Jul 1996 10:46:56 -0400 Subject: Lazy Homebrewer I have been the laziest homebrewer in America. I brewed a stout in mid-February and have not yet bottled. Is there any hope at all, or should I just dump and start over? Thanks in advance for your replies. Return to table of contents
From: "Tracy Aquilla" <aquilla at salus.med.uvm.edu> Date: Wed, 3 Jul 96 10:56:10 CDT Subject: Re: competetive inhibition by maltose, heat-shock In Digest #2090: Steve Alexander <stevea at clv.mcd.mot.com> wrote: >I have documentation that maltose competitively inhibits >beta-amylase. I'll bite. Specifically, at what maltose concentration is the rate significantly inhibited? I'm also interested in your source. "Sharon A. Ritter" <102446.3717 at CompuServe.COM> wrote: >>From: Edward J. Steinkamp >>Does anyone know the maximum temperature differential yeast can >>take? > >Dave Miller answered a similar question in the March/April edition of >Brewing Techniques (Q&A With the Troubleshooter). His source (Dr. Joseph >Power of the Siebel Institute) indicates that the maximum rapid >temperature drop that a yeast can handle is about 18F (10C). Yeast >thermal shock going from colder to warmer is not a problem (from the >same article). Heat-shock induces an entire cascade of reactions resulting in the activation of numerous genes. All kinds of weird things can happen when yeast is heat-shocked. (For literature citations, search "heat-shock proteins".) Tracy Return to table of contents
From: Kurt Schilling <kurt at pop.iquest.net> Date: Wed, 3 Jul 96 10:12 EST Subject: re:Drying hops Greetings and salutations! In HBD 2089 or 2090 some one metioned drying hops. I have been raising hops for about 6 years now. I have used two methods to dry the cones. Method one involved spreading the cones on a cookie sheet and putting the cheet in the attic of the house (temp in July/August was >130 dF). I'd leave the sheets up there for about 5-7 days. End results were pretty good, >90% dehydration. FOr the past couple of years, having moved to a new location, I've been spreading the hops on screened racks and putting them in the loft of my sheet-metal roofed barn. The temperature is a bit lower (100-120 dF), but the improved air circulation thru the screens seems to have improved the dehydration process. Time to driness is about 7-9 days with usually >90% dehydration. FWI, the screened racks are 18" wide by 30" long, 2.5 inches deep and screened with aluminum screening. They do double duty in drying home grown mushrooms from the basement. Have a great holiday! Kurt Schilling Return to table of contents
From: Brian Cornelius <bcorneli at wsu.edu> Date: Wed, 3 Jul 1996 08:15:34 -0700 Subject: Re: Hops Drying Dave Burley writes: >Papazian ( I think) in one or more of his books suggest using your clothes dryer. Tie the hops up in a pillow case and dry away. Keep the temperature between 130F and 150F( Malting and Brewing Science p. 309). The pillow case and clothes dryer trick is for drying of home made malt. "Would my hops be ruined using this method?" You bet! Much too rough on them. The temperature also seems higher that necessary. Unless I'm drying the hops in the attic, I bet I don't ever get over 100F although it takes 2-4 days before they're ready for the freezer. The MBS reference of 130-150F may be for commercial operations where they can't wait that long. Dan Ritter writes: >I have a healthy crop of hops taking over my back yard and I was planning to air dry them slowly in my well ventilated and warmish garage (75-80 F in the late summer early fall and fairly dry climate). I have built several large framed screens that will hang from the ceiling. Every day I will conscientously go out and "stir" the cones to encourage even drying. Will this work or am I asking for failure? It'll work just fine. Exactly what I've done for the past 3 years. >In the dryer?!#....my wife and kids would freak! And probably exile you to Cottonwood Butte. I tried it with malt 2 years ago and still hear about it. :)) Brian bcorneliu at wsu.edu Steptoe, WA Return to table of contents
From: Bill Rust <wrust at csc.com> Date: Wed, 3 Jul 96 11:47 EDT Subject: Re: The Clever Tongue/Iodophor/Igloo Coolers/HSF? Top of the Mornin': Rob Lauriston was discussing taste and quoted Al K: >"You cannot taste esters. Bottom line. Your tongue only senses sweet, salty, >sour and bitter... There was a series of programs on the Discovery channel about the senses, and on the show about taste, they talked about this very thing. A doctor that was on the show mentioned that there were only 4 different flavors that the tongue could discern by itself. They interviewed a couple of people who had medically lost their sense of smell. They both had considerable trouble discerning some fairly obvious flavors. [Regarding iodophor...] I have a question about use of iodophor. I am currently storing a 12.5ppm solution in my kegs until I have time to fill them. On kegging day I transfer the solution to a newly cleaned keg, and rinse the emptied keg about 3-4 times (my habit with bleach solution) before filling and priming. I have always heard to allow the kegs to 'drip dry', but because of my schedule, I find it easier to rinse. Any danger in that? Does iodophor leave a residue that cannot easily be rinsed off, but evaporates with no problem? I'm not really *that* concerned about it since my beer tastes fine, and I haven't grown a third arm or anything after about six batches like this. Also, can somebody confirm a rumor that it only takes about 5 minutes to sanitze glass, plastic, stainless steel in a 12.5 ppm solution of iodophor as opposed to a 2 hour soak in a bleach solution? [Regarding Igloo 5 gallon sport coolers...] 8 single step infusion mashes so far, no warping! I was concerned about warping when I first got it and have been watching it very closely. However, I am getting ready to try my hand at decoction mashing this winter, so we'll see how it holds up. [HSF?] I'm brewing 6 kegs for an upcoming wedding (mine) and batch #1 may be dead from a bad circuit breaker (overloaded my weenie AC unit!!!!) Anybody wanna try a lager (WYeast 2308) primaried at 90+ deg. F.? Would you call that Hot Side Fermentation (HSF)? Oh well, thank goodness my fiancee's a chemist with her own basement (did I do good or what?). I guess I'll just have to start brewing ales at her place instead. Skol. ----------------------------------------------------------- Bill Rust, Master Brewer | Sure drinking kills brain cells, Jack Pine Savage Brewery | but ONLY THE WEAK ONES! Shiloh, IL (NACE) | --Old Irish saying... ----------------------------------------------------------- Return to table of contents
From: "Palmer.John" <palmer at ssdgwy.mdc.com> Date: 3 Jul 1996 08:41:20 U Subject: RE: Keg Conversion Help Braam asked about converting some kegs to brewing vessels including how to mount a false bottom. Depending on the size and shape of the hole that is already in the side of the kegs, I would abandon making a false bottom and use a copper tubing manifold instead. Manifolds work very well for me. To maintain the gravity draw from the tun you will need to have the outlet from the spigot below the level of the manifold and that may necessitate a U bend arrangement as the tube goes thru the bulkhead fitting (or however you do it). |keg wall | | | x--\ | | |_____ manifold | |________ bottom The greyish powder is either dust or oxide. In either case, wash the keg out with a good detergent like dish soap. Something that will rinse clean. Hope this helps, John J. Palmer - Metallurgist for MDA-ISS M&P johnj at primenet.com Huntington Beach, California Palmer House Brewery and Smithy - www.primenet.com/~johnj/ Return to table of contents
From: "Decker, Robin E." <robind at rmtgvl.rmtinc.com> Date: Wed, 3 Jul 96 13:43:00 -0500 Subject: RE: stuck fermentation <robe at cadmus.com> Rob, This may be a bit elementary, but we get this same question at the shop all the time. If you will look at your airlock, you may be able to "relax"... If you use a bubbler airlock, and there is water (or whatever you use) in both sides, it means there is CO2 pressure inside your fermenter, and YBINR (Your Beer is NOT Ruined). If you use the 2-piece airlock, the small inside part should be sort of floating. If your airlock looks fine, just be patient and wait the full 5-7 days for complete fermentation. Just because you can't see bubbles, it doesn't mean your fermentation has stopped. BTW, I wouldn't even consider dumping any batch without first taking a gravity reading, the results of which would help me decide what rescue attempts to try next. You would not believe some of the great "saves" we have made in the past year!! (at nominal additional cost). Goldings "I have to get off this planet" Return to table of contents
From: "Keith Royster" <keith.royster at ponyexpress.com> Date: Wed, 3 Jul 1996 13:59:47 -0500 Subject: HSA & astringency / apple cider recipie Hello all! I recently received some feedback from Rodney Morris on my RIMS web page (see the URL below) and he said something that confused me. In my page I mention that astringency can come from the later stages of sparging when the wort has thinned and the pH has dropped. This drop in pH causes tannins to be extracted from the grain husks which is what causes the astringency. Rodney mentioned that Hot-Side Aeration (HSA) can also cause an astringent flavor, which is more of a concern for RIMS users if they are not carefull to not splash the returning wort. I responded to Rodney that it was my understanding that HSA causes the same cardboardy / sherry / stale flavors in beer that post-fermentation aeration causes, and that I have never heard of the flavor being described as astringent. He then responded with the following..... > Dr. George Fix published an article on hot side aeration in the > winter 1992 issue of Zymugry magazine. In that article, he stated > "in packaged beer the (HSA) oxidized melanoidins can play the role > of oxidezers by reacting with alcohols and producing staling > aldehydes. The latter have an astringent character that sometimes > takes on a metallic tone. ...it can occur even if there is little, > or no air in the bottlesheadspace." > Dr Fix also mentioned in his article: ...oxidized phenols, on the > other hand bring their own flavoring to beer. The German word > "herbstoffe" (which loosely translates to "grain astringent") is > often used to describe their effect. Many regard these flavors as > unpleasant as the staling aldehydes that arise from the oxidation > of alcohols. So do any of you have any comments on this? Are people confusing stale / carboard flavor with astringency? I obviously respect both Rodney's and Dr. Fix's opinions, but at the same time do not remember ever hearing the collective mentioning HSA and astringency in the same sentence. Was I sleeping in class again? - ---------------------------------------------- On another note, I friend of mine has asked me to look into brewing an apple cider for him, specifically like the Woodchuck bottled cider you can buy in the store. I know this is only marginally beer related, but if any of you have any info, recipies, or pointers, I'd sure appreciate it! Keith Royster - Keith.Royster at ponyexpress.com Mooresville, North Carolina at your.service - http://dezines.com/ at your.service My RIMS page - http://dezines.com/ at your.service/RIMS Carolina HomeBrewers - http://dezines.com/ at your.service/cbm Return to table of contents
From: Barry Wertheimer <wertheim at libra.law.utk.edu> Date: Wed, 03 Jul 96 14:16:16 -0700 Subject: MP/TN Valley Hombrewers Competition This is the second (and final) announcement that Metro Pulse and the Tennessee Valley Homebrewers Club are sponsoring their second annual sanctioned homebrew competition on July 13 in Knoxville, Tn. Entry fee is a very reasonable $3 and requires 2 bottles of your delicious homebrew. Bottles of any size, shape, color, or description are welcome. Entries must be received by July 10. For more information, contact Jeff Colfer at jcolfer at aol.com - --Barry Return to table of contents