HOMEBREW Digest #1922 Fri 29 December 1995

Digest #1921 Digest #1923

		Rob Gardner, Digest Janitor

  520 nm? (Rob Lauriston)
  low  finishing s.g. ("KW HULME - 0424279")
  Hops toxicity---The uninformed view ("Michael R. Swan")
  Are my brew system plans ruined? (BigBrad)
  Broken Thermo No Problem (G. M. Elliott)
  Re: Belgian Rock Candy (candi) ("David Elm")
  Scottish Ale and #1728 (trafcom)
  hops toxicity, Crabtree ("Tracy Aquilla")
  Big Jack Attack... ("Pat Babcock")
  Thread21 fix-it program (gravels)
  Priming with sucrose? ("Tim Holland")
  Bottle capper repair ( hopefully :-) ) (Dan Fuller)
  re:  hops, G. Fix comments (DEBOLT BRUCE)
  IODAPHOR (C. Rosen)
  steel/lautering (DejNik)

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---------------------------------------------------------------------- Date: Thu, 28 Dec 95 00:02 PST From: robtrish at mindlink.bc.ca (Rob Lauriston) Subject: 520 nm? Greg Walz's post in HBD # 1917 about lightbulbs damaging beer made me wonder... Does anyone in the collective know the intensity of the various wavelengths of light given off by incandescent bulbs? I think blue-green is what we want to avoid and incandescent always seems more yellow-orange. They might be harmless. (Or they might be the duvel in disguise.) Truth, show yourself! Rob Lauriston <robtrish at mindlink.bc.ca> The Low Overhead Brewery Vernon, B. C. Return to table of contents
Date: Thu, 28 Dec 1995 12:05:31 GMT+200 From: "KW HULME - 0424279" <HULMEK at kbpnfs03.eskom.co.za> Subject: low finishing s.g. as a new kid on the block (my first message) and not having brewed any beer for around fifteen years i'm wondering why every case i have read in the last six weeks or so the finishing s.g. is so low (ie+/- 1020). the last batches i brewed had a finish s.g. of 1050/1055. i am going start brewing again as soon as we have moved house early 96. the Bibbel Return to table of contents
Date: Thu, 28 Dec 95 8:20:58 GMT (Original EST) From: "Michael R. Swan" <mswan at fdic.gov> Subject: Hops toxicity---The uninformed view A week ago or so I posted on the recent evidence that hops are toxic to dogs. I have been following the discussion on the Greyhound list about this issue and thought you'all might get a kick out of one of the posts there. The author of the post will go unnamed. The next time we get involved in an esoteric discussion on water chemistry or some other such thing, it might be helpful to step back and realize that a whole lot of people out there have absolutely *no* idea about what we are doing: ============================================================================= -------------------------- [Original Message] ------------------------- >Date: Thu, 21 Dec 1995 20:57:17 -0500 >Subject: Re: Beer Brewers Beware! >Let's not overlook the obvious -- alcohol poisoning. Nice soggy hopps >from a fresh batch of brew will have a good bit of good old ethanol in >it. Remember that ethanol is poisonous. Given that dogs are opportunistic >feeders who will gorge 'til sick given the chance, I'd not rule out >alcohol poisoning resulting from injesting wet mash. If the hound >dodges that one there is always bloat lying in wait. Mike Swan Dallas, Texas mswan at fdic.gov Standard Disclaimers Apply ps. Someone on the Greyhound List sent me the phone number of the woman who wrote the original article. I would be happy to forward this info to anyone who had any further questions about hops toxicity in dogs. Return to table of contents
Date: Thu, 28 Dec 95 08:09:05 CST From: BigBrad <BPLUMMER at SYSUBMC.BMC.COM> Subject: Are my brew system plans ruined? Happy holidays, all. For the past six months I have been planning my brew system based on one kettle and one burner(propane). I will be using a Little Giant pump and Brutad software. I purchased a converted keg from SABCO and am now in the process of putting together the analog-to-digital circut for temp monitoring. I am right on the edge of completion and what does my wife go and do? .... She buys me a 15 gal SS cook pot for Christmas. It has thrown a monkey in my wrench :) What to do? What to do? I'm happy using a Gott for the masher. I guess my serious question would be... Which SS kettle would be best for my setup: converted keg or SS pot? Or is there even an answer? BTW my wife found this 304 SS 60 qt pot for $118. New. Eat your hearts out!! :) The normal disclaimer about the above companies. - ------------------------------------------------------------------ Brad Plummer \ / BMC Software, Inc. \ If this gets any better, I won't be / Houston, Texas \ able to guarantee the FULL 3 minutes. / bplummer at sysubmc.bmc.com \ / - ------------------------------------------------------------------ Many times I speak for BMC Software. This ain't one of 'em. Return to table of contents
Date: Thu, 28 Dec 1995 09:37:48 -0500 From: ge083 at cleveland.Freenet.Edu (G. M. Elliott) Subject: Broken Thermo No Problem Regards all and Happy New Year---- to the concerned who had a broken thermometer in his wort- I too had the same experience with the same type of thermometer(beads and the red sealer) I believe the beads are non harmful and went ahead and bottled and have long since drank the beer from this batch. Have not had any bad after effects nor any good ones either. The beer was very good although I would not add this adjunct in the future. Since this has happened I have gone to metal dial type thermometers and don't worry about it anylonger. Cheers, Mark Return to table of contents
Date: Thu, 28 Dec 1995 10:56:33 -0500 (EST) From: "David Elm" <delm at hookup.net> Subject: Re: Belgian Rock Candy (candi) >Date: Fri, 22 Dec 1995 10:03:57 -0500 (EST) >From: Todd Kirby <mkirby at bgsm.edu> >Subject: Belgian Rock Candy >I came across some Belgian Rock Candy that our local homebrew shop just >started carrying. I asked the owner about it but he hasn't used it yet >in any of his brews. It comes in clumps on a string, which you have to >strain out after it dissolves. I've never seen it mentioned on >the digest or in recipes. Naturally, I knew where to ask for some advice. >I'm wondering which styles utilize each type (there's dark and light), >what qualities it gives to the beer, and which step of the process is it >added? This is probably of interest to other HBDers, so if someone has a >good summary could you post to the digest? I understand that candi sugar is sucrose that has been crystalized from a supersaturated solution. It will be very pure, hard to find and expensive outside of Belgium. It, and other sugars, are used in most Belgian style beers to raise the fermentables and is added to the wort late in the boil. Have a look at "Belgian Ale" by Pierre Rajotte. Living in Toronto, Canada I gave up trying to locate candi sugar. Instead, I caramalize sucrose to a medium-dark brown colour and add it, while molten, to the boiling wort. - -- David Elm delm at hookup.net (416)-293-1568 fax: (416)-291-9540 47 Chartland Blvd S, Scarborough, Ontario, M1S 2R5, Canada Return to table of contents
Date: Thu, 28 Dec 1995 11:23:16 -0500 (EST) From: trafcom at inforamp.net Subject: Scottish Ale and #1728 Fleming, Kirk Mr. wrote: ....based only on what I've done with about a dozen fairly strong Scottish ales and on Noonan's book, I'd say your finish gravities are already too low. I believe his rule of thumb for Scottish ales is fg ~= .33og. The other aspect of these ales I picked up from Noonan is that every step of the process is designed to make life hard for the yeast. High mash temps (maybe you're mashing too high) combined with low ferment temps. I would NOT raise the temp to get the yeast going--58-62F for a long time is, I believe, the norm. It's basically a lagered ale and you should expect a *very* long ferment. - ----------- 'Mr.' Kirk Fleming? :) Haven't read Noonan's book on Scotch Ales, But based on my upbringing in Glasgow, I don't remember the temp. 'ever' being above 60F in my house in winter - there was no central heat in those days. So I don't suppose brewers would have heated the fermentation rooms above that temp. either. I can't vouch for the beer, only for what local conditions were like. Beer presumably was made with local water, local barley, and brewers brewed under the confines of local weather conditions - a temperate climate. Peter Stanbridge Oakville, Ontario trafcom at inforamp.net Return to table of contents
Date: Thu, 28 Dec 95 12:01:41 CST From: "Tracy Aquilla" <aquilla at salus.med.uvm.edu> Subject: hops toxicity, Crabtree In Digest #1914: "Michael R. Swan" <mswan at fdic.gov> says: [snip] >In the author's case, her husband brewed fifteen gallons of Irish >stout and strained out the hops into a bucket. The greyhound was found the >next morning eating out of the bucket.[snip] She died thirteen and a half hours >after eating the hops. Based on this report, it seems that the animal consumed more than just hops. Perhaps hops aren't the problem at all! Maybe it's the trub? >Pretty scary stuff---especially since the Vet first told the woman >that hops weren't dangerous to dogs. I guess this means don't dump your used >hops in the compost pile if there are dogs around. One of my dogs would probably eat a pile of hops too, if I let her; I don't. Malignant hypethermia is a fairly rare disease caused by an autosomal dominant mutation in the ryanodine receptor (calcium release channel) of striated muscle cells (MacLennan et al.). Certain breeding lines of animals are known to have a genetic predisposition to this disease. In susceptible individuals, symptoms can be induced upon exposure to inhalant anesthetics or certain muscle relaxants, leading to muscular rigidity, tachycardia, cyanosis, hyperthermia, and eventually death. While it's possible that one or more components of hops (which are known to have mild narcotic effects) may trigger malignant hyperthermia in susceptible dogs, I don't think enough research has been done to make any valid conclusions at this point. Interesting though! and in Digest #1916: Steve Alexander <stevea at clv.mcd.mot.com> says: >Re: a previous post - >Correction: Tracy Aquilla correctly points out that the Crabtree >effect really refers to the tendency of yeast to ferment rather than >respire in the the presence of glucose and doesn't necessarily mean no >growth or reproduction, tho' several brewing sources suggest it. I >think the important point is that with organisms like yeast with >multiple metabolic pathways, that rates for a particular metabolic >pathway have many dependencies. True, in fact, ALL organisms have multiple metabolic pathways (not just yeast) and rates of the various pathways DO depend on numerous parameters. However, the important point I was trying to make is that in the case of S. cerevisiae, respiration does not occur in the presence of glucose, regardless of oxygen concentration (see Antonie van Leeuwenhoek 63(3-4):343-52, 1993, for a recent review). The reason I brought this up is that most homebrewing authors state or imply that respiration occurs for a brief period after pitching the yeast, which appears to be in direct disagreement with the scientific literature on this subject. If anyone's really interested in this stuff, I have started collecting some references and I'd be glad to share them and summarize my findings. Email me for details. Tracy in Vermont aquilla at salus.med.uvm.edu Return to table of contents
Date: Thu, 28 Dec 1995 14:20:16 +0500 From: "Pat Babcock" <pbabcock at oeonline.com> Subject: Big Jack Attack... Jack Schmidling has graced us with his wit and wisdom once again... First: How about this Schmidling Warranty-proof (TM) Maltmill (TM) motorizing scheme: Cantilever-mounted motor equipped with v-belt pulley to a reducing pulley. The pulley drives a sprocket which drives an identical sprocket mounted to the mill. A chain to connect the sprockets, and there you have it: the shock absorbing quality of the belt and pulley system, while the sprocket and chain isolates the Maltmill (TM) shaft from any lateral stress resulting from suspending the motor weight with the shaft through the belt. Of course, if your motor is slow enough to require 1:1 ratios, this implementation would probably not be optimum. ******************************* Though I would like to comment on the remainder of his comments, I am restraining myself. Why? Because, like Jack, I am not qualified to speak to the differences between sanitary and sterile. Except that, in textbook terms, sterile is the absence of all microbiological life, and sanitary isn't. I'm sure Jack really meant to think about spores in his discussion of boiling, or perhaps he really thinks that people - qualified people - who have done research - real research - on the subject (not related to brewing, per se, but microbiology, epidemiology, etc...) are full of hogwash. Or maybe he does. Who knows... By the way, Oh Great Banisher of DMS (TM), I've two slow-cooled, domestic pale malt-based batches of beer I need you to come and exorcise the DMS from. One o' us poor mere mortals have been stricken by the mytholgical momism. On intimidating technology? He who lives in glass house... What do I mean? Look in your workshop, Jack. You derive your living by selling some of that which intimidates the newbies. Just because a competitor sells the chiller fittings is no reason to start throwing stones. And the 'level' of the conversation in the HBD just mimics the level of the readers/posters. Probably couldn't change that phenomena even if you wanted to. I see and have seen plenty of "overwhelmed beginners" get just the help they need from the "overabundance of highly technical, complicated, super precise information" parlayed through this forum. Maybe if you'd read rather than roll your eyes, you might see it too. Oh, and welcome back. We missed ya... (Damn! I commented on the other stuff. Never did have much willpower...) Hoppy, er, um, Happy New Beer! Uh, make that Year! See ya! Pat Babcock in Canton, Michigan (Western Suburb of Detroit) pbabcock at oeonline.com URL: http://oeonline.com/~pbabcock/ Let a good beer be the exclamation point at the end of your day as every sentence requires proper punctuation. -- PGB Return to table of contents
Date: Thu, 28 Dec 95 15:35:11 EST From: gravels at TRISMTP.npt.nuwc.navy.mil Subject: Thread21 fix-it program Hi All, In November I posted about a program that would fix files that Thread21 has a problem recognizing. It is called lfcrlf11.zip. I uploaded the file to the Stanford archives and someone discovered that the .zip file was corrupted, so I have recompressed it and uploaded a working file. Sorry for any inconvenience. (P.S., I was so good that Santa bought me a cornelius keg setup! What a guy that Santa!) Steve Gravel Newport, Rhode Island gravels at TRISMTP.npt.nuwc.navy.mil "Homebrew, it's not just a hobby it's an adventure!" - \\\\^//// - \0 0/ - ---------------------ooOo--(_)--oOoo---------------------------- - U Return to table of contents
Date: Thu, 28 Dec 1995 14:06:04 +0000 From: "Tim Holland" <tim at mbmgsun.mtech.edu> Subject: Priming with sucrose? I ran out of corn sugar when I was ready to bottle my last batch and used sucrose (table sugar) instead. The beer turned out fine except that it is slightly over carbonated. Should less sucrose be used to prime than corn sugar? If so how much? Thanks! ================================= Tim Holland -- Tim at mbmgsun.mtech.edu Butte, Montana ================================= Return to table of contents
Date: Thu, 28 Dec 1995 16:45:24 -0500 From: Dan Fuller <fuller at nectar.nexen.com> Subject: Bottle capper repair ( hopefully :-) ) Hello, I have a capper : Everedy No. 150 Capper, at least 35 yrs old. The mechanism on the capper does not fit over the bottle far enough to crimp the cap completely. Does anyone out there no of a place I could get this hardware? - -- Danf ( fuller at nexen.com ) Return to table of contents
Date: Thu, 28 Dec 95 17:29:41 -0600 From: DEBOLT BRUCE <bdebolt at dow.com> Subject: re: hops, G. Fix comments Subject: re: hops, G. Fix comments From: bdebolt at dow.com I would like to second George Fix and Norm Pyle's comments regarding Columbus as a high alpha bittering hop. I made an IPA recently with 66 IBU (per Rager formula) using Columbus for the 60 minute addition and the bitterness was very pleasant. Just Hops gave 2 oz. to me as a freebie on my first order. Usual disclaimers. George Fix also mentioned that he was not getting the same quality of flavor from Cascades as in the past. This was interesting as our most experienced club member (15 yrs homebrewing, BJCP judge) commented at the last meeting that he has been noticing a grassy type flavor in a lot of club beers this year and could only attribute it to Cascade hops after talking to the individual brewers. He thought that perhaps the '95 crop was different than others. This year I received some "veggie" comments on judging sheets for on an American Pale Ale using Cascade and Centennial. Never had these comments before for these hops. May be just a coincidence. I'm just about finished with some alcohol measurements on low alcohol beers made by the freeze and drain technique and should post within two weeks. Someone asked about the new Wyeasts. I just used the 1272 (American Ale #2?) for two consecutive cream ale batches (ran it side by side with #1968 ESB) and will post some info when the second batch is carbonated. Bruce DeBolt Lake Jackson, TX new email address: bdebolt at dow.com Return to table of contents
Date: Thu, 28 Dec 95 17:42 CST From: crosen at wwa.com (C. Rosen) Subject: IODAPHOR Thought I'd add my $0.02 worth. When I recirculate iodaphor thru my wort chiller and back up to the hot-liquor tank, after about an hour, most of the color is gone. There's lots of splashing going on, so I suspect it is volitile, just like chlorine, which also disipates when agitated or heated. My bottle also says to use cold or tepid water. Harlan, soon to be back in C'dale :-) Return to table of contents
Date: Fri, 29 Dec 1995 01:44:01 -0500 From: DejNik at aol.com Subject: steel/lautering Hi all I have two quick questions: 1. Can I use a steel container as my fermenter IT IS NOT STAIN LESS and if I can't uset does any one have a phone number for the company that manufactures SS equip or wholesalers of SS equip. 2. I need teeps on lauterering I did couple partial mashes and I want to try all grain brew,I reed couple of articles on this but, I can't get why do I need to pour my initial runof back into lauter tunn and mixet with sparging water. Wouldn't that decrease mine O.G. Thank in advance Private mail is OK Dejan Nikitovic Marquette University DejNik at aol.com Return to table of contents
End of HOMEBREW Digest #1922, 12/29/95