A couple weeks ago, my boyfriend and I were bottling our third batch of beer when our bottles kept cracking when we capped them. We use the standard red capper that I think comes in most kits. Basically, we started bottling, the first ten or so capped just fine, and then when I capped one I heard a crack and when I released the capper, it held on to both the cap and the upper part of the neck of the bottle that had broken off. I figured my technique was to blame so I was more careful with the next, but it kept happening. Then my boyfriend took over and it happened to him too. We tried using different kinds of caps we had laying around which actually did seem to make a difference (fortunately we were able to finish bottling). Has anyone had this problem before? I'm not sure if it's our capper, the caps, the bottles, or me to blame.