cooking yeast kills it.
it needs warmth, but GENTLE warmth- next to your ballast is plenty cozy.
Put the container on a plate, as it tends to bubble over if the yeast get too crazy.
ventilation does indeed remove CO2 from the area along with the stale air and heat.
If you are serious about CO2, the sealed room style is the way to go- it's fairly advanced setup, but the return-on-investment warrants the trouble.
stinkyattic Reviewed by stinkyattic on . Yeast in sugar=good. Yeast in fection=bad. This post is to advocate the use of yeast in any closet/cab grow. After my recent findings I definately give this method of co2 the Chronisseur seal of approval!:thumbsup: (I've even put a dish in my bedroom in hopes of putting on a little mass myself:D) Rating: 5