Bottle cap wrong direction, slippery silk, how to do, seek tips?
Cover may use the following methods:1, fastening bottle caps: use iron wire hoop outer edge, or in the hardware store to buy "natural gas stove hose" clamp, tighten the fixed:2, with plastic wrap, food plastic bags in the bottle cap inside, tighten the fixed.
Put it in the freezer, the metal cap shrinkage rate, cold will tighten, so it does not slip silk.