Brew Hacking

For the first time ever (while brewing), we had too much wort. Too much wort!!! That never happens. After filling the 5-gallon bucket up to about 6.5 gallons, we still had some left over. At that point (because it's just not right to waste any beer), we had to sanitize a carboy for the leftover.

However, in going through the supplies, we learned that we were missing a piece of the air lock. It's the little middle piece that prevents the back-flow of water into the fermenting wort. We were in luck, though. Amanda, being the pack rat that she is (;-)), keeps the old test tubes from liquid yeast. She brilliantly realized that the tube fits perfectly in the outer part of the air lock. I brilliantly realized that she has a circular saw. She brilliantly realized that the test tubes are not glass, but plastic.

A couple minutes later, she cut down the tube, and then I sanded the rough edges until they were smooth like glass, and we had a complete air lock!

The process, in less sarcastic detail, is to take the yeast test tube, cut it down to about 1-1.5 inches with a circular saw (carefully). Once that's done, pick off the extra plastic bits and then use some fine-grained sand paper to polish the edges smooth. It should fit in the air lock, and you're good to go (after sanitization, of course).