Make your own fermented food in mason jars! This set of Ball Fermentation Lids & Springs 1440010821 help make the fermentation process simpler. The lids have a valve to let Co2 escape and keep outside contaminants from causing mold. The stainless steel spring keeps fermented food safely under the brine, and is easy to remove and replace.
- 2 wide mouth fermentation lids
- 2 stainless steel springs
- For use with wide mouth jars (not included)
- BPA free