These are heavy pottery. It's thicker than a champagne bottle, and certainly thicker than the average beer bottle. But we put port in them, nothing carbonated. How could you tell if there is a weak area?
I may be posting in the wrong forum, but this may be more of an advanced question. I got through my first batch of beer fine, it tastes great and I bottled it tonight using some of these flip top bottles that we use for our winery. After bottling them my husband tells me that they are not meant...