2
votes
2answers
167 views

Will bitterness from a flameout coffee addition fade with age?

I recently brewed an Imperial Stout with some coffee additions. While I didn't boil the coffee for long (warm steeped 3oz beans and pitched grounds and two cups of brew at flameout), it did lend some ...
11
votes
4answers
2k views

Alpha acids vs. beta acids in aging?

Can someone explain the difference in hop bitterness between alpha acids in my wort vs. beta acids bittering during aging? And is it predictable enough to plan for in recipe formulation?