hist-brewing: Re: Preserving yeast

[Robert Stoneman]

Preserving your yeast, where can you find how

Vol. 15. No. 4  Special Issue 1992 of "Zymurgy", page 68, author Maribeth 
Rains, PH. D.
(basic) For freezing just mix equal amounts of either glycerol (1/3 cup to 
2/3 cup water and boiled for 15 minutes to sterilize) OR sucrose solution 
(3/8 cup cane sugar in one cup of water and boiled for 15 minutes to 
sterilize) with your yeast suspension. The container should be "something 
that seals tightly". Keeping time approximately one to two years.  However, 
a frost-free freezer is deadly to yeast stock due to the warming and 
cooling.

Robert Stoneman

>From: Jerry Harder <mastergoodwine at alltel.net>
>To: Hist-brew list <hist-brewing at pbm.com>
>Subject: hist-brewing: Preserving yeast
>Date: Sun, 14 May 2000 21:14:03 -0500
>
>A while back someone said they had a method of preserving yeast by
>adding glycerol and freezing.  I think it may have been a kit.  Where
>can I find out how to do this?
>
>Master Goodwine.
>
>
>
>
>
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