SMART DATETRACKING FERMENTATION LIDS Builtin date tracker lets you easily set and check your fermentation start date, so you know exactly when your batch is ready. No more guessing or losing track of time. Ideal for sauerkraut, kimchi, pickles, and other fermented vegetables. AUTOMATIC GAS RELEASE Patented oneway valve design automatically vents excess CO2 during fermentation. Eliminates the need for manual burping or using water airlocks, keeping your process simple and mess. Just seal the jar and let the lid handle the pressure release. FOODGRADE SILICONE Crafted from 100% BPA silicone for safe, longlasting use. Resistant to cracking, warping, and staining. Dishwashersafe for easy cleanup. for fermenting vegetables such as cucumbers, carrots, garlic, and more. DESIGNED FOR WIDEMOUTH MASON JARS Specifically engineered to fit standard widemouth mason jars securely. Lowprofile design seals tightly to protect your ferment while saving space in your cabinets and drawers. PRACTICAL APPLICATIONS Use for home fermentation projects like making tangy sauerkraut to accompany hearty meals. Create batches of spicy kimchi without worrying about gas buildup or spillage. Make crisp, flavorful pickles directly in mason jars with a simple, spacesaving lid solution. By combining precise date tracking, automatic pressure release, durable foodsafe materials, and a widemouth fit, these lids provide a reliable, convenient way to ferment a variety of vegetables at home. This design takes the guesswork out of fermentation, prevents spoilage, and saves time in the kitchen.