Today I learned what a blow off tube does and why you should have one. I opened my pantry, curious to see if my stout was still fermenting. Boy was it ever! My airlock was filled with a mixture of beer and vodka, and that same mixture was all over the lid of the primary fermenter. Fortunately it stayed on the lid, because it was a mess. Think of root beer float foam, but thicker and stickier. Fortunately I have random crap I take from our warehouse at work and a spare airlock. After some quick sanitizing, I made this.
The tubing is just small enough to squeeze into the airlock tube. Dump the other end into some sanitized water, and crisis averted.
I know video if beer fermenting is boring, this thing is bubbling like mad right now! That pretty much means it’s making booze!