Alex’s Yeast Proofer!
Libertarian Ale! Freedom in a Bottle!
Proofer Rebuild Motor
The Complete joy of Home brewing
A Wort Chiller
Unholy Union Pilsner
My proofer's gas washer

For the above, I'm using a fish tank pump and pumping the air through an iodine solution, then separating out the water. I'm using a nitrogen defusing stone to "atomize" the air in the Erlenmeyer flask. I just used a propane torch to bend the borosilicate glass tubing.

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