Kilner® Fermentation Jars 34 Oz

The Kilner® Set of 2 Fermentation Jars provides the easy way to create smaller batches of your own delicious fermented foods packed with vitamins, minerals and probiotic cultures.

The introduction of a silicone valve in a 34 fl oz Preserve Jar Lid will release the gas that builds up inside the jar during the fermentation process. However, the atmospheric air will not enter the jar usually causing food to go mouldy.