Venting airlocks allow fermentation to naturally happen without the need to "burp" your jar. A sealed jar allowed to ferment could potentially burst! Keep your fermenting protected but hands-off without the risk with our venting airlocks.
• Can be Used for Fermenting Probiotic Sauerkraut, Pickles, Kimchi & More!
• Fits on the Mouth of Mason Jars to be Secured with a screw band (Not Included)
• Available in 2 Sizes Designed for Wide Mouth or Regular Mouth Mason/Canning Jars (Ball, Kerr, Bernardin, etc.)
Each pack includes 4 venting lids in various colors.