I just made my first ever batch of beer, and it turned out great! The only thing is that my priming sugar calculation was slightly under what it should have been. I added 1/4 cup honey to a (finished volume) 2.5-gallon batch, and I should have been closer to 1/3 or 1/2 cup.
The beer is carbonated, but it could use a little more. Is there any way to increase the carbonation? I.e. by, in a sanitary environment, opening the bottle, adding a bit more priming sugar, and re-capping? Assume that I have enough head space to actually do that (I do, because I was afraid of my bottles exploding so I left a bit more than I needed to).
I'm happy with how the beer turned out regardless, so it's not a big deal. In my next batch I can just increase the amount of priming sugar. But bubbles are nice, so I'm curious: can I increase the carbonation of already-bottled beer?