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What are your thoughts on fermenting in ball lock corny kegs? Obviously a 5 gallon batch in primary you risk a lot of blow off, but I've also read that the geometry of a vessel can effect fermentation. Your thoughts.
I'm about to give it a shot, I think... I pulled a rookie move and transferred to the keg, then checked gravity afterward. Fermentation didn't finish (come to find out the yeast has a tendency to stall out), so I'm going to add some Safale US-05 to try and get it to finish off. Once it's done (fingers crossed) I'll probably transfer it to a different keg to get it off the yeast. I'm thinking blowoff tube.
Yeah so I ended up doing this yesterday, that's how I did it. I hooked it up with the gas disconnect, just like if I was coming off of a CO2 tank, but dropped the other end of the tube in a bucket of StarSan. This morning it was bubbling away.
i haven't opened it up to see how it went, but there was very little headspace and i surprisingly didn't have any krausen get up into the blowoff tube. Gravity started off about halfway toward finished (this is a saison that i should have warmed up when it slowed but kegged before taking a reading - whoops).