\n\nTwo Lumps of Sugar Silicone Fermentation Wide Mouth Lids- Green, 4-Pack. The perfect companion for creating probiotic-rich, delicious fermented foods right in your kitchen. Designed with both novice and seasoned fermenters in mind, these premium lids transform your wide-mouth mason jars into airtight fermentation vessels, ideal for crafting sauerkraut, pickles, kimchi, and more. Our fermenting caps can be used to ferment vegetables such as cabbage, cucumbers, garlic, tomatoes, radishes, and more. Combining functionality, durability, and a splash of whimsy, this 4-pack in bright Green wide lids brings a dash of color and convenience to your culinary adventures.\n\n\n\nFermentation Lids allow CO2 to leave while oxygen is kept out. Our silicone fermenting airlock caps 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 required. Make your probiotics economically and naturally at home.\n\n\n\nFood and dishwasher safe, easy to clean, BPA free, no PHTHALATES, sturdy and durable\n\n\n\n