Have you ever thought to yourself, "I wish I could just make my sauerkraut/kimchi/fermented pickles right in my mason jars? Or are you struggling to find a durable, foolproof system for keeping oxygen out, while still releasing CO2? Our mason jar airlock lids are made with vintage glass tops, and hand-made by [pre]serve foodskills
especially for us in Calgary, Alberta. This product is truly one-of-a-kind!