Blasoul 6PCS Mason Jar Lids Fermentation Lids for Mason Jars Wide Mouth Food-Grade Silicon Waterless BPA Free mold free Dishwasher Safe 3 colors Fermentation Lids for Fermented Probiotic Food

Whatever you want to ferment, Sauerkraut, Kimchi, Pickles or Any Fermented Probiotic Food, we have useful and applied mason jar lids for you.
Our fermentation lid is made of silicon, food-grade and BPA free, mold free. You can use it without any worry, they are clean and sanitary. Just cover the jar mouth, and screw the airlock is OK. It is very easy to use for everyone, convenient and fast.
Also, the lids have a great advantage, they can vent gas automatically, no need to burp jars daily to release excess pressure and maintain water levels,
the lid top has a hold which will let the gas vent automatically, and will not let the air enter the jar, there will be no jar explosion or bent lids.
So, the moment you put your food into the jar, cover the lid and screw the airlock, you just wait a few days or weeks for them to ferment is OK, no need to do anything, it really saves your time.