I just brewed my first batch from Northern Brewer. I previously brewed from extract kits from another manufacturer and didn't generally have problems with carbonation. Under the directions from that vendor, I would place a measured amount of sugar in each bottle. I had read of the process where you add a sugar solution to your bottling bucket, but never tried it until now.
I put the solution in as directed, then auto siphoned the beer into the bottling bucket. Once that was done I bottled the beer and capped it off. The beer has been in the bottles for about a month now, and most bottles are fine. I get a couple that seem over carbonated, and have come across a few that are almost totally flat. Should I be mixing up the solution and the beer in the bottling bucket with a spoon or something? I really don't want to go back to putting sugar in each bottle individually, but have another beer in the fermenter and want to get carbonation right for my next batch.