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Lambic Digest #0402
From postmaster at longs.lance.colostate.edu Thu Jul 21 03:46:47 1994
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Subject: Lambic Digest #402 (July 21, 1994)
Date: Thu, 21 Jul 1994 00:30:08 -0600
Lambic Digest #402 Thu 21 July 1994
Forum on Lambic Beers (and other Belgian beer styles)
Mike Sharp, Digest Coordinator
Contents:
Cleanliness and Fruit ("RKESSLER")
Blanche de Bruges yeast (Ed Hitchcock)
Microscopes (ptimmerm)
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Date: 20 Jul 1994 09:54:09 EST
From: "RKESSLER" <RKESSLER at HR.HOUSE.GOV>
Subject: Cleanliness and Fruit
Hi y'all.
I could use a little advise on fruit additions. I have decided
to add about 5 lbs. of frozen raspberries to my plambic that's
been going for about 6 months. I intend to siphon the lambic
into another glass carboy containing the raspberries and oak
chips. I then intend to pitch some brett cultures and dregs and
let the whole thing sit for another few months.
I am concerned, however, about contamination from the fruit. Do
most of you pasturize your fruit or do you just add it in without
thought to any new bugs that might infect the lambic? If anyone
pasturizes, how do they accomplish this (i.e. how much water,
what temperature, how long, etc.)? Has anyone tried microwaving?
Also, am I right to siphon or should I just try to cram the
berries into the current fermenter? And --this harks back to an
ongoing debate-- should I use glass or will I be better served by
plastic's ability to let some oxygen in?
Thanks for any help.
- --Rick Kessler
(rkessler at hr.house.gov)
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Date: Wed, 20 Jul 1994 11:28:43 -0300
From: Ed Hitchcock <ECH at ac.dal.ca>
Subject: Blanche de Bruges yeast
>Many of the wits are bottle conditioned with Lactobacillus, however pure
>cultuers can be obtained when the sediment is streaked on a bacteria
>inhibiting medium. If you see lots of rod-shaped organisms under a
>microscope, then you probably have lactobacillus.
That's what I thought. I was trying to brew a flanders brown with
this yeast, thinking that those little rods I saw under the scope were
lactobacilus. They weren't apparantly. One of the three batches of beer I
have ever dumped down the drain, I'm sad to say. Apart from the infection,
the yeast performance was remarkably lager-like anyway.
*-Ed Hitchcock---ech at ac.dal.ca---* Mares drink Grolsch and does drink
*-Anat.&Neurobio.---Dalhousie-U.-* Koelsch and little lambs drink Lambic.
*-Halifax--NS--Can---------------* Ed'll drink Lambic too, wouldn't you?
------------------------------
Date: Wed, 20 Jul 94 08:35:10 PDT
From: ptimmerm at mashtun.JPL.NASA.GOV
Subject: Microscopes
"Dave Suurballe" <suurb at farallon.com>
writes
>...could somebody tell us what this particular scope could be used for?
> It is a Swift Model M251B. Monocular, 10X eyepeice, widefield, DIN optics,
>"student-proof" coarse and fine focus, 4X, 10X and 40X objectives, illuminator.
> Retail was $420 , the flyer has it listed for $165. The catalog number is
> WLS48165-57.
This microscope will get you 400X, which is enough to see most of the critters
of interest. Things like yeast and lactobacilli are quite large. The hard
thing to see is some of the smallest bacteria, pediococcus. To see these
you would need a much better microscope, say 1000X with an oil immersion
lense. I bought one second hand from a retire Bausch and Lomb employee
who lives locally. This is a medical quality microscope. If somebody
wants one of these I can look up the old guy again.
Paul Timmerman
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End of Lambic Digest
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