I set up my Blow tube as I have done other times before, (the same as pictured in this post What is a proper blow-off tube setup?)
This time though when I checked it after after about 24 hours the yeast was going to town giving me a bubble about every second and it had siphoned about a gallon of my wort from the carboy into the bucket.
Any idea as to what would cause this result?
Topic blow-off-tube blow-off homebrew
Category Mac
You should be using a 6+ gallon carboy for a 5 gallon batch of beer for this reason. There needs to be enough room for the thing to kreusen up without blowing everything out.
Very active yeast and/or an overfull fermentor. You could also have the tube jammed too far into the fermentor. It just needs to be in far enough to not get forced out from the pressure.
Some yeast just habitualy blow-off a lot, too. I had 2.5 gallons of starter wort and Wyeast 3787 in a 5 gallon carboy that blew off a little bit. Everyone I know has issues with that particular strain blowing off, too.
It's a fairly regular occurence for me, and it will still make great beer. Just make sure you're blowing off into something with enough volume to contain the mess.
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