[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Yeast CO2

> Date: Tue, 10 Jun 1997 15:23:02 -0700
> From: Eric Wahlquist <ewahlquist at mijcf_org>
> Reply-To: ewahlquist at mijcf_org
> To: aquatic-plants at actwin_com
> Subject: DIY CO2
> I feel like a have a stupid question but I've become stumped in my
> attempts to create a satisfactory yeast mix for my DIY CO@ setup.  My
> first mix was @ six cups water, 2 cups sugar, 1/2 tsp yeast.
> Is this normal? When I did all the reading, it seemed that a mix should
> be bubbling for a few weeks at least.

Well Eric, you are not doing everything wrong.  Recipes vary, and the
one I use is a bit different from what someone else might use.  I use 1+
liter of water (about half to 3/4 of the two liter bottle), 1 cup sugar,
1 teaspoon of yeast (with optional use of baking soda).  Temperature is
important to the length of time the batch will last.  Like when baking
bread, heat makes the yeast work faster... so if where you keep the
yeast mix bottle is in a warmer spot than where I keep mine, your batch
will run out first.  That said, at about 75F, the above batch lasts for
about 10-14 days.  The baking soda is used to keep the pH of the mixture
down to have the yeast survive longer.  Some people will also add flour
to the mix after it starts dying down to revitalize it.  I have not had
much success with that, but others seem to.  Hope this helps.


pearlsco at u_washington.edu
The more people I meet, the more I like my plants.