HOMEBREW Digest #4379 Tue 21 October 2003

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  re: Immersion Chiller Efficiency (John Schnupp)
  methanol.... (Ben Hanson)
  Re: Immersion Chiller Efficiency ("ERIC AHRENDT")
  Starter wort shelf life (Steve Funk)
  Old thread on mead (Kirk Harralson)
  Immersion Chiller (Pete Calinski) (David Towson)
  tempering malt (Jeff Renner)
  Nutrition/Recipes for Spent Grains ("Steve Smith")

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---------------------------------------------------------------------- Date: Mon, 20 Oct 2003 04:45:16 -0700 (PDT) From: John Schnupp <johnschnupp at yahoo.com> Subject: re: Immersion Chiller Efficiency From: "Pete Calinski" <pjcalinski at adelphia.net> >While chilling a batch yesterday, I did a little experiment that pointed out >how important it is to keep an immersion chiller moving while chilling. <snip> >To me it means the chiller should be moving almost constantly. Anybody ever >experience this or tried continuous movement? I once did a series of tests. This was back when I built a horizontal chiller. I never did use or test it but I did take a bunch of neat pictures (which I never posted on a web site either). Part of the preparation was to test the cooling rates of my vertical chiller. I had some graphs in Excel. I used a stirrer to move the wort instead of moving the chiller. I used a small DC motor with a variable power supply. I kept the speed slow so that wort was barely moving. The short story is that without stirring it took 39 minutes to reach 65degF, and with gentle stirring it took 29 minutes to reach 65degF. So yes, there is a difference. You can get the file here: http://www.home.earthlink.net/~johnschnupp/Chiller_data.xls The speed is the DC voltage, don't ask me how it relates to RPM. I just adjusted the speed to the surface was being disturbed. ===== John Schnupp, N3CNL ??? Hombrewery [560.2, 68.6] Rennerian Georgia, VT 95 XLH 1200, Bumblebee Return to table of contents
Date: Mon, 20 Oct 2003 09:11:15 -0400 From: Ben Hanson <bhanson at rica.net> Subject: methanol.... From www.howstuffworks.com: A typical glass of wine contains a small amount of methanol, from 0.0041 to 0.02 percent by volume. In comparison, the same glass will have about 10-15 percent ethanol. Return to table of contents
Date: Mon, 20 Oct 2003 09:47:33 -0700 (PDT) From: "ERIC AHRENDT" <rock67 at peoplepc.com> Subject: Re: Immersion Chiller Efficiency "To me it means the chiller should be moving almost constantly. Anybody ever experience this or tried continuous movement?" Several years (1999 or so?)back Doc Pivo posted about a setup he had that caused the chiller to "jump" (using water hammer) every so often. For the life of me I can't remember the mechanism, but it addressed this very issue. Return to table of contents
Date: Mon, 20 Oct 2003 12:37:04 -0700 From: Steve Funk <steve at hheco.com> Subject: Starter wort shelf life Does anyone have a rough idea of how long canned DME/LME based wort will remain good for growing yeast starters? Are there any deleterious effects to using old starter wort? If so, how old? Is there special storage criteria? The reason for asking is that I have several quarts of starter wort that I canned a couple of years ago but it looks as if some things have precipitated and I'm wondering if this is a problem. TIA, - -- Steve Funk Columbia Gorge (home) Brewing Stevenson, WA Return to table of contents
Date: Mon, 20 Oct 2003 12:59:11 -0700 (PDT) From: Kirk Harralson <kirk78h at yahoo.com> Subject: Old thread on mead I just re-subscribed to the HBD after a very long absence (5+ years). I'm amazed at some of the old names still kicking the brewing knowledge around! Hopefully, some of the old-times can help me on this one. I tried searching the archives, but came up blank. I know there was a thread many years ago regarding tips on making a drinkable mead that was ready in a matter of months instead of years. I can't remember who wrote it, or the specific information, but the gist of it was to use an ale yeast, use PLENTY of yeast nutrients, wait until bottling to add acid, etc. If anybody has the specifics of this topic, please let me know. This will be my first brewing attempt in many years, and I would like to make it as successful as possible! Thanks, Kirk Return to table of contents
Date: Mon, 20 Oct 2003 18:37:58 -0400 From: David Towson <dtowson at comcast.net> Subject: Immersion Chiller (Pete Calinski) In HBD 4378, with reference to having to continuously move an immersion chiller up and down to maintain cooling efficiency, Pete Calinski asks: "To me it means the chiller should be moving almost constantly. Anybody ever experience this or tried continuous movement?" For some time, I have been using a counterflow chiller. But during my "immersion chiller days", I noted the same thing, and I regularly moved the chiller up and down the whole time it was in use. I tried just parking the thing near the top of the liquid and letting convection do the work, but that was no where near as effective as keeping it moving. Dave Towson Bel Air, MD Return to table of contents
Date: Mon, 20 Oct 2003 20:28:07 -0400 From: Jeff Renner <jeffrenner at comcast.net> Subject: tempering malt Brewers This has been mentioned before, but I never got around to trying it until today. I added 3-4 oz. of water to 11 lbs. of malt before milling it and stirred it until it was all thoroughly dampened, then let it sit ten minutes or so. This toughens the husk a bit, keeping it from breaking into as many pieces as it might otherwise. I then milled as usual using my JSP MaltMill, and the difference was remarkable. The husks were so nearly intact that the grist was almost fluffy. I did my usual double milling, and towards the end I had a little trouble with the malt "bridging" and not feeding properly. I suppose it didn't happen earlier because there was the weight of the malt pressing it down. Not only did it result in better milling, there was less dust. Since I never (knock on wood) have stuck mashes, I can't say that this improved runoff. My efficiency was a bit higher than usual, however. Jeff - -- Jeff Renner in Ann Arbor, Michigan USA, JeffRenner at comcast.net "One never knows, do one?" Fats Waller, American Musician, 1904-1943 Return to table of contents
Date: Mon, 20 Oct 2003 19:30:09 -0600 From: "Steve Smith" <sasmith at in-tch.com> Subject: Nutrition/Recipes for Spent Grains It just didn't seem right to throw out the diverse combination of spent grains left over after I recently brewed some Scotch Ale, part extract, part grain (I think it's gonna be goood). So, I looked in HBD's archives, and via Google for some food recipes that utilized spent grain, and to find out about the nutritional value of spent grain. About all I could find was recipes for bread, which is perfectly well and fine, but I was surprised there wasn't more out there for cookies, stews or other food recipes that use spent grain. I did vary the search terms during my research. As regards their use, I tried two bread recipes that each provided two loaves (baked in the oven, since I do not own a bread machine). One recipe called for 1 cup of spent grains, the other called for 4 cups of grain that had been blended some in a food processor. The bread from both recipes was delicious (at least I think so), and I felt good honoring that part of my heritage, European peasant, that refuses to needlessly waste anything that has a valuable use. As regards the nutritional properties of spent grains, I found nothing except that typically most people consider that they are best fit to stimulate the breakdown processes of your compost heap. Until this last batch of beer, that's where mine have gone. During my research and subsequent baking efforts, two questions came to mind. First, what is the nutritional value of spent grain? My scant knowledge of nutrition leads me to believe that most likely it is a source of fiber with negligible nutritional value, since that is mostly steeped and sparged away. I wouldn't want to eat a lot of spent grains or recommend it, if it is not profitable to the body's health. Second, if there can be a place in the diet for it, are there other kinds of food recipes, besides bread, that utilize spent grains? Anybody? I hope this isn't droll to those who have brewed for years... To show you what a newbie I am, I just learned that the price of a bottle of Chimay, or Belgian Lambic, is equivalent to that of a cheap bottle of wine. Indeed, there's a Lambic in my fridge that very soon will take away at least a little of my hapless ignorance. Thanks. Steve Smith sasmith at in-tch.com Missoula, MT Return to table of contents
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