I've seen a couple people here say you should use Vodka in your airlock. I was just wondering why that would be better? Does it not evaporate as quickly? Is it because it is thinner and allows air to escape easier? Just wondering what people think. Thanks!
It's because Vodka is sanitary. You want this in case it gets sucked into your beer by negative pressure, and to keep stuff from growing in the airlock.
Most go for the later. It does evaporate during the course of a strong ferment, but it is easy to top off. Also if you cool your carboy and it sucks a little in you abv goes up.
Water or Vodka for Airlock?
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