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I want to make ethanol from food waste for my science fair project. How to remove co2 while remaining anarobic, Thanks

I want to make ethanol from food waste for my science fair project. I use food waste and yeast for this process. I wantr to know how to remove Co2 produced in this process while remaining anarobic for the fermentation to occur. If i put a tube, will it bring back outside air into the system? Thanks,

run a tube from your container to inside a bucket of water is the quickest way
lemonie8 years ago
Get some home-brew kit (like frollard says). Your biggest problem will be removing the water, I assume this is for fuel?
Also be careful in you choice of food-waste.

L
frollard8 years ago
The same way you do it with wine- You use a fluid gap system - Utilize a p-trap filled with liquid, such that the sealed system can bubble co2 out, but air can't get in...
bubble.PNG