So my Ruination clone (1.080 OG) that I brewed Saturday (pitched around 6pm), is in the carboy, and fermentation took off very quickly, and seems to be going well. Given the OG, I used a blow-off tube, which I have done many times before. I pitched a starter of 001, and decided to pitched another vial (so 2 vials 001, 1 with starter).
There is no bubble activity in the pitcher filled with star san. I'm not overly concerned (or concerned at all) given the fermentation seems to be going well. I guess I am just surprised that it isn't more of a "violent" fermentation. No bubbling, or krausen in blow off, as I have seen before.
My thinking is that since there is probably close to 2 gallons of head space + the large tubing (and length), that there just isn't enough pressure to bubble. Is this a fair assumption? My paranoid side worries that there is leak, or the clamp is pinching...(Doesn't seem to be the case)
Just thought it was interesting. (pics attached)