Last night's brew went a little over volume. My carboy was full to the throat, before I added the yeast slurry. I capped it with a stopper and blow off tube but the liquid level was right to the stopper. Perhaps a little heavy handed.
Cut to 24 hrs later and the blow off vessel, a quart jar sitting in a bucket, is a foam sculpture sitting in a deep puddle of my beer. The carboy is full to the top of course, but the liquid level is where the side meets the top at the corner. The bucket has nearly a gallon of liquid in it (maybe less, but still a shock).
I'll make a burton union system next time. The one I'm thinking of I saw in BYO's website. It allows blow off but cycles the liquid (yeasty!) back to the carboy.
Anyone made one?