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• UPGRADED FERMENTATION LID – Highest quality,food grade material, Bpa-free. Automatic Venting: carbon dioxide escapes from the vent.self-venting jars eliminate the worry about things exploding. oxygen cannot enter.included a extractor pump to suck out the oxygen during the later stages of your ferments.
• DATE TRACKER – You can track both month and day,Our date setter keeps track when your ferment started so you always know when it’s almost complete and get delicious fermenting foods on time.
• RELEASE TAB – You can open fermentation jars easily with it.what’s more,we designed one hole on the middle of tab,you can hang the lids on the wall with common home hanger,save space and easy to store.it is also great for hanging your fermenting notes on the hole.
•  FITS ANY WIDE MOUTH JAR – Will work with Ball,Kerr,Bernardin regular mason jars,or pickling jars.Any brand of “Wide Mouth” Mason jar in pint,quart or half-gallon.Very convenient to ferment vegetables:cabbage,dill,peppers,beets,garlic,carrots,cucumbers etc.