Fermenting Lids for wide mouth mason jars. 4 waterless airlock fermentation lids kit. Easy Grip fermenter lid with Oxygen Pump automatically Vents air. Tracks ferment date. (4 Lids + Pump)

The lids are fantastic! As someone who lacto-ferments regularly, I find these incredibly practical — no more checking the water trap daily to make sure it hasn’t run dry.

We are huge fermenting fans, and did the traditional pickle pebble using the standard pickle pipe for a while but got tired of the messes. Inevitably the pipes would plug up and the pressure beneath sent an oozing mess up over the lid and down the sides of the Mason jars. We ended up with sticky messes everywhere. Then we came across these lids and thought "Genius!", the solution to our problem. Well, they have been! So glad we bought these. We've purchased several sets since. Additionally, the pump eliminates all oxygen which makes for a bacterial-free environment allowing the veggies to ferment in a very healthy, clean jar. We pump all the oxygen out, to the point that it's hard to pump at all, and that pulls up all the brine to make certain the veggies are covered, including the cabbage. We have found cabbage to be the most difficult to maintain moisture over the top due to our very dry climate which encourages the cabbage to reabsorb the moisture. Using these lids and the pump discourages the reabsorption and maintains fluid over the top where it is most needed. Since using these lids we have yet to find any yeast, kahm, mold, or questionable growth on our ferments, which is hugely reassuring. Whenever we do a taste test we test the PH with a pen first, and once done tasting and putting on the lid we reapply the pump to remove all oxygen inside of the jar. The sterile oxygen free environment makes all the difference for a healthy ferment. Overall we very much recommend these lids for serious fermenters. It simplifies the busy lives fermenters deal with due to juggling so many projects. Also, the date marker is a big plus for taste testing. The nice grip is another big plus for lid removal. They are very easy to clean, but we do not put anything into a dishwasher so there is no risk of residue being left inside our jars or sealing lids. It's much safer to hand wash, rinse and allow to drip dry. These are great for wide mouth jars, and we've used them on pint, quart, and half gallon-sized jars. Versatile and easy to store, too. Great product for fermenting!

They work as advertised! The little vacuum pump that’s included is a good little bonus. Really helps draw the O2 out of the fermentation jar (I use Ball canning jars). The lids, themselves, feel just a bit on the brittle side but, so far, quite happy.

This kit has been invaluable in fermenting for me and gives me a Perfect Fermentation every time! The automatic venting valve makes it so easy - you don't have to do anything after you pump the air out. I have seen videos where the person pumps up and then takes the pump off to expel the air - you do NOT have do that with these - you just pump up & down as you would a bicycle pump and it works perfectly! I put the weight on, pump the air out, turn the dial and that's it! I Love these lids! There is no need to use any of my other lids because these are Perfection! Also the Customer Service is beyond what I would've expected. I wanted to solve an issue and the owner personally solved it with the most Caring, Excellent Customer Service - a company is only as good as it's Customer Service, in my opinion. I don't write reviews unless I am 100% sure of a product and this one definitely deserves it! Fermenting should be easy and fun and this kit makes it just that!

Well packaged and good instructions. Worked well for my fermented vegetables.

Got these so I do not have to use an air lock. Fits perfectly on my wide mouth Ball mason jars and using the pump to remove the air really gives it an air tight seal. These lids also have wings on the sides which make it at easy to open. I used it to ferment some Jalapenos and even after they were done I use it in the fridge and no ware on the plastic and still have a good seal.

I do fermenting and I found these the best lids.

I have used these lids a few times now and I really like them. They are sturdy and easy to twist on and off. The suction tool works really well too and by getting the air out I didn't have any mold or anything on my fermented cabbage. Definitely worth the cost!

Disappointed

Highly recommended from a lot of recipes, books, and videos.

Tried using with glass weight but my ferment grew kahm yeasts! The product did not sucks up all oxygen. Disappointed.

So far the product seems to be working well. I’ll know more when the fermenting cycle is finished.

I LOVE these lids. I purchased a nearly identical lid a year ago that has a slightly better 'date dial' in that it is more secure and less likely to get shifted than these. Other than that, these are literally a must have for fermentation aficionados. The fact that they come with a pump to remove oxygen when you pop the lids to check your ferments is a big bonus. I've never had an issue with fungus nor mold in my ferments using these lids as long as I pay attention to things like removing air if I take the lids off for checking. The only downside is the aforementioned loose date dial and the rubber seals pickup the odours of the ferment.