SOPHICOSilicone Fermenting Lids, Waterless Airlock Fermentation Tops Mason Jar Lid Fermenter Caps for Pickles, Kimchi, and Fermented Probiotic Food - 4 Pack, Wide Mouth (Jars Not Included)

These fit wide mouth jars perfectly. I love that they’re one piece, dishwasher safe, easy to use, work well, and cute.They’re made for pickling, so with enough internal pressure, gasses can escape from the little flaps at the top. You could probably fit a straw through the opening too.I use these as a plastic free storage solution and mainly have fruits or leftovers and the seal is enough that nothing dries out in the fridge.

These work great for storing dough dough starter! These lids protect the fridge from explosions if starter gases.

These fit perfectly, but the lid will pop-up instead of venting via the little x in the center. They also hold the scent of the ferment, even after washing and sanitizing. I will not buy silicon lids again.These might be nice for dry goods you get into frequently, if they weren’t so stinky from the ferments. I do like the ease of putting them on and removing them.

I like that they fit in the jar opening and don't need to be screwed on/off. Just press the top to vent. Easy. So far, so good!

work great for fermenting vegetables. I like cauliflower and carrots best. Adds tang to salads, good for snacks, and good FOR you.

I had these for a batch of fermented ginger-lemon honey, and they performed well. The ease of access is an advantage over the fermenting lids that require bands. The disadvantage (with most any fermenting lid) is the possibility of leakage if it gets knocked over.

I lacto-ferment cabbage at least once every other week. I love these because they fit my existing mason jars and can continue to be used as a lid until I am ready to ferment up more saurkraut; did I mention that they're also super easy to clean and durable?My ferments have come out perfect every time I use them, you get a better seal than using the finger-tight method, and adequate venting only when needed; I love these lids.

The media could not be loaded. Great tops! Love how easy it is to ferment with these! Self burping. Use on wide mouth jars. So easy to have a steady supply of healthy sauerkraut. I hope they last a long time!🙏