This beer was fermenting normally for about 16 hours then foamed heavily. I guess its infected but I don't know how, usual strict precautions were taken. Outgassing like crazy.
this post was submitted on 07 Jan 2025
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Homebrewing - Beer, Mead, Wine, Cider
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Yeast does this if they are in really sweet spot for sugar, nitrogen, microelements, temperature, and pH. Almost always happens in braggot (once shot into ceiling with lock, was quite a mess), also if you add yeast fertilizer. I think I saw this reported reproducively for slightly over 23C lager yeast. And, well, insufficient headspace might be a problem. Don't worry, at least yet.
also happens with strawberry mead, for some reason