Keep Food Submerged While FermentingDesigned for fermenting in a canning jar, these non-porous, lead-free glass weights keep food under the brine (and away from oxygen) for safe fermenting with no spoiling. Pack of 4. Pickle Pebbles™ are handmade. For wide mouth jars. Dishwasher safe. Note: Not for canning or heat processing.How to Use: Pack a jar with the food you're fermenting. (Our Pickle Packer fits into mason jars easily - sold separately.). Weigh down contents with Pickle Pebbles to keep food submerged in brine.. Place a Pickle Pipe (sold separately) on the jar and secure with a jar band.. Set on your countertop and let it go to work..