Elevate your fermentation game with the Two Lumps of Sugar Fermentation Lid Regular Mouth Green 4-Pack. These vibrant purple, BPA-free plastic lids are designed for regular-mouth mason jars and feature a built-in airlock to release CO2 gas while keeping OXYGEN out.\n\n\n\nOur fermenting airlock caps are made of silicone, are self-burping, and have a one-way waterless valve to vent gas automatically while fermenting foods at home.\n\n\n\nNo water, burping, or maintenance is required.\n\n\n\nPerfect for fermenting pickles, sauerkraut, Kimchi, kombucha and more.\n\n\n\nDurable and easy to clean, this 4-pack ensures safe, hassle-free home fermentation with a touch of style. It is BPA-free and contains no phthalates.\n\n\n\n \n\n\n\n \n\n\n\n \n\n\n\n