One-piece silicone waterless Airlock Fermentation Lids for Wide Mouth Mason Jars, Mold Free, Food-Grade Silicone. Easy Fermenting Lids for Sauerkraut, Kimchi, Pickles or Any Fermented Probiotic Food.
The fermenting lid is a one-way waterless airlock with a cross cut on top, which only opens when there is enough pressure in the mason jar to force it open to let carbon dioxide escape from the jar, but won’t allow air from the outside to enter into.
* Made of LFGB food grade silicone, BPA-free, odorless and durable.
* Super easy to use, great fermenting item for beginners. They can be fully sanitized and simply put them on the jar, the fermentation gases just slowly leak out.
* Best choice for small batch of homemade pickle fermenting.
* Fit for any Wide-mouth jars.
* Mold free and easy to clean, dishwasher safe.