Jillmo Fermentation Lids for Wide Mouth Mason Jars, Stainless Steel Auto Venting Fermenting Lid Kit with Airlocks & Silicone Grommets for Pickles, Kimchi & Sauerkraut, 4 Pack, No Jars Included
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Availability:
Only 5 left in stock, order soon!
Arrives
Monday, Jun 15
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Size: Pack of 4
Material Type: Stainless Steel
Features
- Fermentation Lids Kit for Wide Mouth Mason Jars: Includes 4 stainless steel fermentation lids with seals, 4 BPA-free airlocks, and 4 silicone grommets to easily turn your wide mouth mason jars into a simple home fermentation setup for pickles, kimchi, sauerkraut, kombucha, and more
- Made for Standard Wide Mouth Mason Jars from 8 oz to 64 oz: These mason jar fermentation lids are designed to fit standard 3.38 inch 86 mm wide mouth jars, making it easy to ferment everything from small test batches to large family-size recipes using jars you already own
- Airlock Fermentation Design with No Daily Burping: Each fermenting lid works with a BPA-free airlock to help release fermentation gas while limiting outside air exposure, creating a cleaner, easier, and more beginner-friendly fermentation process for everyday home use
- Reusable Stainless Steel Fermenting Lids Built for Long-Term Use: Made with stainless steel lids, flexible silicone grommets, and replaceable components for a sturdier and more dependable wide mouth mason jar fermentation setup you can reuse batch after batch
- Includes Spare Grommets and 1-Year Replacement Support: Comes with extra silicone grommets for added convenience, plus a 1-year replacement for damaged small parts. For best care, wash the plastic airlocks with warm water only and do not boil them
Material: Stainless Steel
Color: silver
Brand: JILLMO
Style: wide mouth split fermentation lid with airlock
Product Dimensions: 3.38"L x 3.38"W
Brand Name: JILLMO
Number of Pieces: 4
Manufacturer: JILLMO
UPC: 606829878778
Model Number: 43178-147305
Manufacturer Part Number: 43178-147305
Unit Count: 4 Count
Included Components: 86mm fermentation lid with seal*4, BPA-FREE airlock*4, Ring*4, Silicone grommet*6
Material Type: Stainless Steel
Is the item dishwasher safe?: Yes
Is the item microwaveable?: No
Color: silver
Product Style: wide mouth split fermentation lid with airlock
Shape: Round
Item Dimensions L x W: 3.38"L x 3.38"W
Item Weight: 9.6 ounces
Closure Type: Twist Lug
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jun 15
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: Pack of 4
Material Type: Stainless Steel
I'm absolutely thrilled with this fermentation kit! The stainless steel lids are high quality and fit my wide mouth mason jars perfectly. The airlocks work flawlessly - they let the CO2 escape while keeping oxygen and contaminants out, which has resulted in consistently successful ferments. What I love most is how easy this kit is to use and clean. Everything I needed came in one package, and the silicone grommets create a perfect seal. I've been fermenting sauerkraut, pickles, and kimchi with zero issues - no mold, no failed batches. The stainless steel construction feels durable and looks professional in my kitchen. It's also a much more sustainable option than constantly buying fermented foods from the store. If you're new to fermenting or looking to upgrade your setup, I highly recommend this kit. It's made the whole process foolproof and enjoyable!
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Reviewed in the United States on February 18, 2026 by S. Main
Size: Pack of 4
Material Type: Stainless Steel
Shouldn't be used with high salinity or acidic solutions. Will corrode if exposed to boiling water or high salt/acid content. Keep kids out of contact with brew. Lids are airtight without any pressure. Nicely designed one piece lid and the hole is lipped. The gasket is one piece and slightly smaller than the snout of the airlock. This allows the snout to be pushed in and pushes gasket out slightly, holds well. Good seal. My mead started bubbling within 30 minutes and the valve could easily be seen bobbing up and down every few seconds. Do not overfill the valve. only needs to be filled maybe an eighth of an inch above the slots in the bobber. Lid can be pressed once on a jar, it will go up and down with pressure changes, good way to test it. Overall I love the lids. The steel could be higher quality but as long as you hand wash and sterilize they work just fine. Extra gaskets were included with mine. Good quality plastic on the valve pieces, not thin doesnt seem like itll crack after many uses
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Reviewed in the United States on November 4, 2021 by Micah
Size: Pack of 4
Material Type: Stainless Steel
These are mostly great, but got a little yucky by the end of a 2-3 week fermentation. I would’ve given them 5 stars if the material (stainless steel) were more solid—this steel felt light, thin, and somewhat flimsy, but the gaskets and plastic components worked great, and because they disassemble easily, cleaning was quicker and easier than I expected. Definitely better than trying to use regular mason jar lids and trying to “burp” them regularly (what a pain). The juices did overflow a bit, but otherwise it was trouble free. Highly recommend storing them in a sink if you’re able to, makes any brine leaks a minor issue, vs. staining or damaging the countertop.
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Reviewed in the United States on July 27, 2021 by Wellness Lisa
Size: Pack of 4
Material Type: Stainless Steel
Was making sauerkraut and getting ready to put in the jars to ferment. Opened the 4 pack of fermentation kit wide mouth. Never received the grommets for the lids. Everything else looks and works good please send grommets I purchased in Aug of 2025
Reviewed in the United States on January 1, 2026 by Robert o Umphrey
Size: Pack of 4
Material Type: Stainless Steel
It took me a long, long time to gather the courage and initiative to try fermenting hot peppers. Because of the extraordinarily hot summer and long growing season in 2022 I harvested the last of my hot peppers in November. I started four 16 oz jars of these with a 3% brine (using a scale). I let them ferment for three months and there was not a speck of any kind of mold or fungus on them whatsoever. I did see a bit of whiteness settling at the very bottom of the jars and was afraid it was that kahm yeast I’d heard about; however, after some Google research I discovered that it is nothing more than some of the normal bacteria dying off (due to having unfavorable conditions) and is totally natural in the bottom of the jar. And the peppers are divine! I blended some up into hot sauce and others we add onto sandwiches etc. I’ve already ordered a few more sets and I am super excited to try making sauerkraut, kimchi, radishes etc. I know people do ferments without these special gadgets but I would so much rather use them and have perfectly clean ferments then have to scrape off some mold, because every time I read somewhere to “just scrape off the mold” it makes me feel a little bit funny inside.
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Reviewed in the United States on March 11, 2023 by Jason L
Size: Pack of 4
Material Type: Stainless Steel
I used to Can Jam Jelly and Preserve years ago but like most women today I was a single working mother of 4 children and one just doesn't have time to do this. My children are now all grown and gone and have children of their own. When we did fermenting it was remembering when to do things like digging it up out of the ground releasing the gas putting cap back on shaking it releasing the gas and putting the cap back on putting it back in the ground and covering it with dirt. I don't know who invented this device but it makes life so much easier when fermenting. Your product is strong durable and works great and makes fermenting very easy to do with less work I plan on ordering a few more of them sometime early next week. Sincerely, Rhonda Clark
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Reviewed in the United States on July 25, 2020 by Rhonda Clark
Size: Pack of 4
Material Type: Stainless Steel
I'm so glad I bought these. They are perfect. The lids have a rubber ring/seal underneath to make things airtight, the grommets fit perfectly, and they even include four extra grommets. I'm very happy with the purchase. I have four containers fermenting now with these lids and airlocks, and they are working great. You could make this a little cheaper DIY but would have to source out everything and do the work. I don't even know where you would find the under-lid seals. Plus whatever they use to machine the holes in lids, they are perfect. That in itself is something hard to do that cleanly with a drill bit. I think it's a very fair price for what you get. Edit: I now have the BPA free plastic lid version as well and they are just as good as the stainless steel lids. I love both. The other difference I could see between the two kits is the grommets are different. The plastic lid version has a connected piece that could be used to plug the hole if needed.
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Reviewed in the United States on September 2, 2019 Reviewed in the United States on September 2, 2019 by Peter S.
Size: Pack of 6
Material Type: Stainless Steel
Works well with my wide mouth Ball jars. I've used several times to make different types of ferments and this have held up well.
Reviewed in the United States on November 1, 2025 by Cabinfeverclay