I’ve been brewing for a while now and for some reason I’ve gotten way off track with achieving the desired amount of carbonation. I think one thing that has confused me is my efforts to be more precise in knowing the psi, using different sugars, and brewing different amounts (I’ve done a bunch of 1 gallon and 3 gallon batches). The different brewing calculator sites are really screwing me up, because many seem to have different results given the same stats. I’ve tried the calculator a few times through NB, and I’m assuming I should trust it. A few times, I’ve way over carbonated, and somehow now I’ve undercarbonated. The beer I’m drinking right now has been in the bottle for 3 weeks, so it could possible do better with a few more weeks, given that it’s cold and it’s sitting around 64 degrees. So, this is a 4 1/2 gallon batch of a smoked stout, and I bottled with 90 grams (3.17 ounces) of table sugar. This was decided after plugging in my numbers into the NB calculator. Was this too low. Now I’m searching around again and many are saying to use closer to 4-5 ounces or 3/4 cups, which mine is definitely lower. Where am I going wrong?! At this point in my brewing career, I don’t want to be fussing around and feel unsure about something as simple as priming sugar. Also, in the case that I just screwed this one up, is there anything to do? Add a bit more sugar somehow and re-cap? That seems dangerous. All thoughts/suggestions appreciated.