My last CO2 generator seemed to work ok for a few days, but then fizzled out.

For the next prototype, I tried to improve on the weaknesses of the last one.

All changed to keep the yeast alive and happy

Improvements

Wrapped with tape to give the yeast a dark environment Used a hot glue gun to seal the tubing and lid Made a much more efficient airlock. Put the container next to a light for warmth

This tube setup also makes it really easy to know how much CO2 is being generated. Si I’ll know when to either agitate or add more sugar and yeast solution

Basic Steps

Mix 1 part sugar with 2 parts water - use enough water to fill 1/2 of your container - sugar should be completely dissolved in the water, and the solution needs to be warm but not hot. Hot water will kill the yeast Add warm sugar solution to your container Add a pack of yeast. I’m using active bakers yeast Gently mix Seal the container with a top that has some sort of airlock. So CO2 can escaped but air can’t get back in

I’ll update in a couple of days