Hi Everyone!

I'm seeking a constant supply of cheap CO2.


Is there a cheaper method than sugar/water/yeast? I can use any kind of sugar, corn syrup, frozen juice concentrate (corn syrup) and a number of other things... no? I'm all ears because I have such a tiny, tiny budget.

The main reason I thought of brewing was for the high alcohol yeasts... it would keep me from having to dump and dilute less often.


Currently I supply supplemental CO2 for a small 3x4' greenhouse that's cooled using re-circulated A/C. I'm using a 5gal bucket, aquarium heater (non-adjustable and set at 78F), water, sugar and baking yeast.

The mix bubbles constantly and produces enough CO2... but it's haphazard at best. Once the mix slows... I dump half of it off and add fresh water. When the sugar dissappears... I add more.

I'm looking for more information on

A) What things I should be looking for visually to indicate any changes I would have to make to keep CO2 production at optimum

B) Yeast varieties that are known to be long living and hardy... while also being resistant to high lvls of alcohol. (I've read on here the champagne varieties can run to 17.5% or so)

C) Processes and/or DIY Equipment that will help me maintain a steady lvl of CO2.

I've been reading... heh... but I still have issues formulating the questions... using brewery speak.

Thanks so much!

p.s. Way cool community here everyone! I'm actually interested in brewing beer and wine now... after only reading this site for a day or so!