Problem. I have this one brew that does this strange thing when poured.
Itís a stout recipe, approx 9%ABV, brew about 10 months old.
When poured it achieves 2 fingers of head but immediately starts fizzing like when you would dissolve an aspirin. Takes about 10 tot 20 seconds and all head is gone.
Glass remains filled with pure CO2, and carbonation is mostly gone. However the taste is quite ok.
Weird thing is, Iíve had this more than once with this particular recipe but never with any of my other recipes.
Iíve had that problem in the past when bottling. I figured out that there was some type of infection. Disappointing, but it made me clean and sanitize my equipment a lot more! Havenít had that problem since. Either drink quick or feed the drain