Just brewed the burbon barrel porter kit, the visible fermentation lasted less than 48 hrs and the head is already gone and few bubbles visible in the air lock. The direction have a 1 month total fermentation. Concerned that it seemed so short… any thoughts?
Just because you can’t see anything doesn’t mean that fermentation is over. Leave it alone.
Hopefully you didn’t ferment it too warm.
Take a hydrometer reading. Wait 2 days and do it again. If it’s the same number then it’s done. It is the only way to know for sure. Hydrometer, test tube and beer thief: Best $15 you’ll spend.
