PATENTED ADVANCED VACUUM SEAL TECHNOLOGY: The incredible Burp Lids LLC will help you with the at-home fermentation process.

They include an excellent airlock vacuum-seal valve technology, quick release tabs, and a mechanism that releases carbon dioxide while keeping oxygen and other unfavorable airborne contaminants out of your jars PATENTED EFFICIENT AIR-LOCK LIDS: There is no need to burp the lids since our no burp valve automatically enables gasses to exit and blocks oxygen from entering.

The low profile waterless airlock fermentation lids eliminate the need for cumbersome water-filled airlocks, allowing the jars to fit neatly into cabinets HANDY AND FINELY MADE: They are made of the finest quality BPA-Free materials.

Our leak-proof fermenter lids fit most wide-mouth mason jars and are simple to use, clean, and open.