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Major Nikon

(36,827 posts)
5. The balloon was used as a one way valve
Sun Jan 20, 2013, 10:57 PM
Jan 2013

You poked a couple of pinholes in it which allowed the gas produced by fermentation to escape without letting air into the jug. It works pretty well actually.

If they got a bad smell, it probably means they were fermenting something other than yeast, which can and does happen, especially if you don't sterilize well between batches.

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