🥒 Ferment Like a Pro – Elevate Your Kitchen Game! Extract oxygen effortlessly for perfect fermentation every time. Compatible with all wide mouth mason jars for versatile fermenting. Easily hang your lids and notes for a clutter-free kitchen. Stay on top of your ferments with our intuitive date tracker. Experience the ease of self-venting jars that prevent explosions! BPA-free material Automatic venting Date tracker The Fermenting Lids Kit is a revolutionary solution for home fermentation enthusiasts. This kit includes four high-quality, BPA-free lids designed for wide mouth mason jars, featuring automatic venting to prevent pressure build-up and explosions. With a built-in date tracker and a convenient extractor pump, you can easily monitor and optimize your fermentation process. Perfect for making sauerkraut, kimchi, pickles, and more, this kit is a must-have for anyone looking to elevate their culinary skills.