--- product_id: 89594022 title: "Silicone Fermentation Airlock Valve Lids With Rust Proof Bands for Wide Mouth Mason Jars (Charcoal Gray, 3 Pack)" brand: "mason jar lifestyle" price: "£19.21" currency: GBP in_stock: true reviews_count: 4 category: "Kitchen" url: https://www.desertcart.co.uk/products/89594022-silicone-fermentation-airlock-valve-lids-with-rust-proof-bands-wide store_origin: GB region: United Kingdom --- # Silicone Fermentation Airlock Valve Lids With Rust Proof Bands for Wide Mouth Mason Jars (Charcoal Gray, 3 Pack) **Brand:** mason jar lifestyle **Price:** £19.21 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Silicone Fermentation Airlock Valve Lids With Rust Proof Bands for Wide Mouth Mason Jars (Charcoal Gray, 3 Pack) by mason jar lifestyle - **How much does it cost?** £19.21 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/89594022-silicone-fermentation-airlock-valve-lids-with-rust-proof-bands-wide) ## Best For - mason jar lifestyle enthusiasts ## Why This Product - Trusted mason jar lifestyle brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Color:Charcoal Gray  |  Package Quantity:3 These lids greatly reduce your chances of getting mold or kahm yeast in your ferment. Also perfect for storing coffee beans in Mason jars! The truth about silicone valve lids: All brands of silicone valve lids are not truly 100% one-way valves. At a certain point in the fermentation process, negative pressure is often created inside the jar. You may see your valve lid caving in, and a very small amount of air will likely leak into the jar. You may even need to pinch the valve to let air into the jar, so the lid can return to a normal position. This is undesirable, but in my testing I have found that it has a minimal effect. My ferments don’t seem to get moldy at any higher rate than with other airlock lids, and other people have good results using other brands of silicone valve lids. These lids are much more convenient because you do not need to monitor the water level in an airlock, they have fewer pieces to clean and assemble, they have a lower profile, and they are unbreakable. Personally, I think these benefits are worth the small extra risk of contamination. ## Features - 3 Silicone Valve Lids Plus 3 Stainless Steel Bands / Rings. Fits Any *Wide Mouth* (3″ Internal Diameter) Mason, Ball, or Canning Jar. - Simple to Use - Revolutionize your small batch fermentation! The “bubble” on the top has a slit cut in it. When pressure builds up in the jar, the lid bulges up. This automatically opens the slit and lets the CO2 produced by fermentation escape. - Zero Maintenance - No more burping and no more topping up the water in the airlock! No more exploding jars or bent lids! - Best Materials - Silicone is a safe, BPA Free, non-plastic material for food use that does not leach any chemicals. The band is 304 grade 18/8 stainless steel, which will not rust and is also dishwasher safe! - Easy to Clean and Sterilize - Dishwasher, freezer, low oven, and boiling water safe! ## Images ![Silicone Fermentation Airlock Valve Lids With Rust Proof Bands for Wide Mouth Mason Jars (Charcoal Gray, 3 Pack) - Image 1](https://m.media-amazon.com/images/I/41eUKoVMBlL.jpg) ![Silicone Fermentation Airlock Valve Lids With Rust Proof Bands for Wide Mouth Mason Jars (Charcoal Gray, 3 Pack) - Image 2](https://m.media-amazon.com/images/I/51JO9fQp3xL.jpg) ![Silicone Fermentation Airlock Valve Lids With Rust Proof Bands for Wide Mouth Mason Jars (Charcoal Gray, 3 Pack) - Image 3](https://m.media-amazon.com/images/I/51q9YdzPyYL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great for small batch fermentation. *by S***N on Reviewed in the United States on September 4, 2017* This is such a cool way to ferment small batches of veggies. I have bigger crocks, but I am the only person in my family who really wants to eat experimental pickles. (Maybe if I stopped calling them experimental?). I have done pint and 20 ounce jars of carrots, dilly beans, napa cabbage, jalapeño peppers and kohlrabi. All have been delicious, except for the kohlrabi. That was too experimental even for me. However, since this cap is easy to clean, and the stainless steel ring won't rust, I could compost the experiment, throw the rig in the dishwasher and start over. Highly recommended. ### ⭐⭐⭐⭐⭐ Great product. *by J***A on Reviewed in the United States on September 18, 2017* Love this lids, very easy and simple. Steady material. Blue is my favorite color and it is great. I will be purchasing a few more for my pickling and kefir fermentation. I also learning how to bake, and I will need some for my sourdough starter. ### ⭐⭐⭐⭐⭐ worked great *by J***S on Reviewed in the United States on March 3, 2018* Used to make Lactic Bacillus. Worked great --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/89594022-silicone-fermentation-airlock-valve-lids-with-rust-proof-bands-wide](https://www.desertcart.co.uk/products/89594022-silicone-fermentation-airlock-valve-lids-with-rust-proof-bands-wide) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-16*