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)

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!

got these to replace the silicone lids that implode under pressure. sturdy and easy to clean.

Nice, but could've had better instructions-there were none for the pump. Would've had 5 stars if the lids didn't absorb and hold on to smells. I fermented carrots with dill and garlic and that's all I can smell now on the cap and it won't come out, even after soaking for a while. For this price, you would think they would've put at least 2 weights in here.

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.

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!

So I bought 2 different styles of fermentation lids and this one really stood out for the ease of getting the lid back off with the built in grip tabs. There was some negative reviews regarding using the air removal tool but I found that it was a great tool for removing air. I would put the tool into place, suck the air out, remove it and return the plunger to down position and put back into the lid to remove air again. I did this 3-4 times and you could feel the air come out as it got harder with each use. I removed the lid daily to mash the sauerkraut back down since I didn’t have a weight for my jars and my kraut turned out perfect! Great Quality and overall extremely satisfied with this purchase.

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!

Super easy to use and is of great quality so far. I'm doing a pepper ferment with some onions and garlic to make hot sauce in a few weeks. The lids fit great and I did use the pump just to try, and it seemed to do the job. Will def come in handy in the future as it is made for use later on when co2 production is lower and oxygen isnt pushed out as easily; made for use if you try fermentation doneness of pickles etc and need to re close to further ferment then the pump can be used to suck out all o2. Co2 production and fermentation reaction is at its peak during the first week or so, after that you need to manually rob the contents of o2.

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.