So I learned something today that may be of interest. I left my blow off tube apparatus on my carboy for 2.5 weeks, which is well after the active fermentation was complete. My set up is a simple drilled bung with 3/8 inch vinyl tubing leading to a gallon jug with Starsan.
When I checked on it today (after not looking at it for over a week) I noticed some clear Starsan sitting in the tube outside of the gallon jug. So I lifted the tube to see if I could drain it back into the jug, but it all wouldn't go. So I gently lifted the end of the tub out of the Starsan and suddenly the Starsan in the tube was sucked into my carboy! Apparently there was quite a suction built up that I didn't know about. I guess this happened after the active fermentation stopped.
About a foot of clear Starsan that was in the tube got sucked into my beer. So did I ruin my batch? I doubt it, but I thought I'd share my experience. I sure as heck won't be leaving a blow off tube on any longer than necessary in the future!
When I checked on it today (after not looking at it for over a week) I noticed some clear Starsan sitting in the tube outside of the gallon jug. So I lifted the tube to see if I could drain it back into the jug, but it all wouldn't go. So I gently lifted the end of the tub out of the Starsan and suddenly the Starsan in the tube was sucked into my carboy! Apparently there was quite a suction built up that I didn't know about. I guess this happened after the active fermentation stopped.
About a foot of clear Starsan that was in the tube got sucked into my beer. So did I ruin my batch? I doubt it, but I thought I'd share my experience. I sure as heck won't be leaving a blow off tube on any longer than necessary in the future!