HOMEBREW Digest #4073 Tue 22 October 2002

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  discussion about pH and Astringency (JohanNico)" <JohanNico.Aikema at akzonobel.com>
  Drilling Holes in SS ("Jonathan Royce")
  Subject: re: white stuff in clean bottles ("Nichols, Josh")
  Question about temperature changes (Pete Limosani)
  Re: White stuff in bottles (Mark Kempisty)
  RE: Sealing the top of the Conical ("Christian Rausch")
  Re: Hydrometer error (David Towson)
  Empty Bottles ("Mary Johnson")
  question ("Fred Scheer")

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---------------------------------------------------------------------- Date: Mon, 21 Oct 2002 12:09:40 +0200 From: "Aikema, J.N. (JohanNico)" <JohanNico.Aikema at akzonobel.com> Subject: discussion about pH and Astringency Hello, The discussion about pH and Astringency interests me. In "Die Technologie der Wurzebereitung" from prof. L. Narziss (technology of the preparation of wort) ISBN 3-432-85006-9 I found the next data: FW=first wort S1=first sparge S2=second sparge S3=third sparge. Sparge temp. 75-78 C (167-172 F). for a 12 % wort, the extract % was: FW=16.3 S1=13.9 S2=5.3 S3=1.6 Total extract is 10.2 % (before boiling) pH: FW=5.69 S1=5.74 S2=5.99 S3=6.35 Polyphenols (mg/liter) FW=171 S1=172 S2=184 S3=294 Anthocyanogene FW=80 S1=78 S2=117 S3=222 Maybe the extracted tannins, during decoction boiling, are precipitated with proteins. Does this help Steve?? Greetings from Holland (Europe), Hans Aikema Return to table of contents
Date: Mon, 21 Oct 2002 04:09:36 -0700 (PDT) From: "Jonathan Royce" <jtroyce at directvinternet.com> Subject: Drilling Holes in SS Wayne Holder writes: - -- > Jonathan Royce writes: > Actually, they are called "Greenleaf punches", but > this is just like calling facial tissues, "Kleenex". Uhhh... Only if you actually called them Kleenecksf. Greenlee tools.... - -- CRAP! That's what I get for spell checking my posts while not paying attention! Of course, Wayne is correct in that they are called "Greenlee" punches. Anyway, my link to McMaster-Carr's website will still give you a good idea of the sizes, etc. available. Good luck! Return to table of contents
Date: Mon, 21 Oct 2002 08:58:44 -0500 From: "Nichols, Josh" <Josh.Nichols at us.gambro.com> Subject: Subject: re: white stuff in clean bottles I have found that the best solution for removing labels is 1/4 c. of automatic dishwashing powder and 2-3 gallons of water. It leaves no residue and they fall right off, except for some of the foil labels. Those are always a bear. Josh Nichols Charlotte, TN Return to table of contents
Date: Mon, 21 Oct 2002 10:48:51 -0400 From: Pete Limosani <plimosani at rcn.com> Subject: Question about temperature changes I just recently ventured into brewing lager beers. To get better temperature control, I purchased a refrigerator last July. I replaced the thermostat with one that will allow me to control temperature from about 35 degrees to about 70 degrees (F). I use the same refrigerator for fermenting, lagering, conditioning and aging. As I keep brewing, these phases overlap for several batches. I have read that temperature changes of as little as 5 degrees can harm beer while it's fermenting. But, I haven't found much info on temperature changes during other phases. For instance, I have a pilsner recipe that requires primary fermentation at about 50 degrees--raise the temp 5 degrees for a diacytel rest-- rack it to a secondary and lager at about 34 degrees--bottle and condition it at about 50 degrees--then age at about 34 degrees. If I have another beer aging in the fridge, will the temperature changes affect it? I believe that it's most important to have the temperature right during primary fermentation and conditioning. It is as important in the other phases? Would the best compromise for all batches be to just leave the temperature at 50 degrees? Would leaving the temp at 50 degrees be worse for the above Pilsner recipe than bouncing the temperature around during the aging of the Bock? I appreciate any thoughts/experience you may have. Return to table of contents
Date: Mon, 21 Oct 2002 11:17:35 -0400 From: Mark Kempisty <kempisty at pav.research.panasonic.com> Subject: Re: White stuff in bottles I have been told that this is some of the dissolved glue settling onto various surfaces. I lightly scrub the bottle outsides with a Scoth-Brite or Brillo pad (registered trademarks and all that other stuff), scrub the inside with my bottle brush, wash with soap and rinse well. I have also used Oxy-Clean (yada, yada, yada) and it got the labels off without the white residue. Still used the bottle brush on the inside though. Its a lot of work to take labels off! - -- Take care, Mark Return to table of contents
Date: Mon, 21 Oct 2002 11:39:32 -0400 From: "Christian Rausch" <christian at rauschbiercompany.com> Subject: RE: Sealing the top of the Conical Steve, Thanks fot the lead. I think the silicone non toxic solution they offer is going to do the trick. Thanks alot. oring to seal the top ~$13.00 www.allorings.com 21.5 Gal. SS Conical Hoppper ~$114.00 www.toledometalspinning.com Uni bit or Greenlee Punch 7/8" ~$30.00 So far so good the project is still saving me money, well of course that is if it works. Anyone have a lead on SS 1/2" NPT Conduit couplings? Cheers, Christian Rausch Return to table of contents
Date: Mon, 21 Oct 2002 12:14:13 -0400 From: David Towson <dtowson at comcast.net> Subject: Re: Hydrometer error In HBD 4072, Tom Karnowski said his hydrometer is reading low. I had a hydrometer error once, and I noted that the paper scale in mine is just rolled-up and held in place inside the glass tube by friction. So I carefully tapped the hydrometer on a block of wood until I moved the scale to where I wanted it. I suppose some hydrometers may have the scale more permanently attached, but this potential fix is worth a try. Dave in Bel Air, MD Return to table of contents
Date: Mon, 21 Oct 2002 11:40:59 -0500 From: "Mary Johnson" <mpmarus at hotpop.com> Subject: Empty Bottles OK, I'm fairly new to the hobby (addiction). In the last digest, Mark Tumarkin mentioned saving beer bottles for reuse. All the bottles I get have twist-off caps...are y'all successful at re-capping those? Thanks Mary www.mj-pg.com Retriever Brewers Return to table of contents
Date: Mon, 21 Oct 2002 19:03:03 -0500 From: "Fred Scheer" <fhopheads at msn.com> Subject: question Hello: Our Homebrew club, the Music City Homebrewers, and I spent the whole weekend with Jeff Renner here in Nashville, TN. We where very busy with Judging, having fun etc., and I forgot to ask Jeff if the Frankenmuth, MI, homebrew club, BIBERE, still exists? Anybody knows.....? Fred M. Scheer Return to table of contents
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