Originally Posted by neophilus
S-05 always fakes me out. I watch the airlock for a few days and everything seems calm, then I let my guard down and suddenly there's foam spouting out the top.
I've been trying not to use a blowoff tube for too long because they get cloudy and I can't get the yeast crud out after a couple days then I have to buy new tubing.
What I do to clean the junk out of my blow off tube is pretty simple and works really well for me. First I submerge the tube for a day or so in water so all the material is pretty well soaked. Then I take a length of bailing wire about a foot longer than the blow off tube. I make small loop on one end of the bailing wire and tie some yarn to the loop. I wrap the yarn around the loop and about a 2" section up the wire until the thickness is just about the same diameter as the inside of the blow off tube. Essentially making a big cotton swab on one end of the wire. Feed the non wrapped end through the tube, pull the wrapped end all the way through and it pulls all the left over gunk out. Rinse the tube out and the cotton swab end off and repeat if needed. It gets pretty much all the stuff out and it's ready to be soaked in sanitizer and reused the next time you need it.