I've had a life-long fancy for using vodka to clean sanitize and naturally use it in my air-lock. Given that it is only 40%, however, and I live in California where pure grain alcohol is illegal, ...
I had some minor blow-off enter (and exit) my airlock during the most active part of fermentation. The krausen has since gone down significantly, and there is no worry of the airlock getting clogged. ...
Just getting started on home brewing and I used boiled water in my airlock. I've seen that some places recommend using sanitizer as the airlock "fill". Is it ok to use straight up StarSan in there or ...