1-Gallon Pickling Crock Weights When pickling and fermenting fruits and vegetables, the foods must be submerged in the brine to prevent unwanted microbes from growing on exposed areas. Stoneware Pickling Weights are designed just for this purpose and are sized to fit our 1-, 3- and 5-gallon Stoneware Pickling Crocks. Microwave-, oven- and dishwasher-safe