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Re: revitalizing DIY CO2

At 4:21 -0400 6/7/97, Aquatic Plants Digest wrote:
Christopher Clubine <cclubine at yorku_ca> asked:

>rather than replacing a whole mix of yeast, water, sugar and baking soda,
>in a 2 liter bottle, is there some way that I can revitalize the mixture,
>say by adding a little more yeast to get another week out of th mixture?
>what should I add to get another week out of my mix? - CCI

Try adding a teaspoon or two of whole wheat flour. I theorize that sugar
water brews are low in nutrients, and these are largely suppllied in the
original yeast that is added to start the mixture. I added flour to a
depleted brew, and it perked right up. New brews with flour require no
powdered yeast to start, just a few ounces of the previous brew to
innoculate the mixture. When I tried to innoculate a plain sugar-water brew
this way, it did not take off and I finally added powderd yeast to get it

My data is based on observations over a year of playing with CO2 brew.
There are many other factors such as the seasonal temperature variation of
the house, that must be ruled out. I only have one tank, so I don't start
multiple bottles simultaneously. A good experiment would be to start
multiple bottles (in the same location) with different mixes on the same
day and watch how they go.


Paul Nicholson               Electronic Imaging Systems, Inc.
TEL 805 532 1068             5148 Commerce Avenue, Unit F
FAX 805 532 1065             Moorpark, CA 93021 U.S.A.
paul at eisusa_com		     http://www.eisusa.com