--- product_id: 53134098 title: "Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack" brand: "fermentology" price: "£3.47" currency: GBP in_stock: false reviews_count: 13 url: https://www.desertcart.co.uk/products/53134098-sauer-system-fermentation-airlocks-lids-grommets-gaskets-stoppers-for-regular store_origin: GB region: United Kingdom --- # Airtight storage Ferment veggies BPA-free materials Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack **Brand:** fermentology **Price:** £3.47 **Availability:** ❌ Out of Stock ## Summary > 🥳 Unleash Your Inner Fermenter! ## Quick Answers - **What is this?** Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack by fermentology - **How much does it cost?** £3.47 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/53134098-sauer-system-fermentation-airlocks-lids-grommets-gaskets-stoppers-for-regular) ## Best For - fermentology enthusiasts ## Why This Product - Trusted fermentology brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Automatic Degassing:** Say goodbye to monitoring—let the Sauer System do the work for you! - • **Eco-Friendly Design:** Crafted from BPA-free materials, because your health and the planet matter! - • **Effortless Fermentation:** Transform your kitchen into a probiotic powerhouse with minimal effort! - • **Versatile Compatibility:** Fits all regular mouth Mason jars—perfect for any fermenting enthusiast! - • **Health Boosting Probiotics:** Elevate your gut health with delicious, homemade fermented foods! ## Overview The Sauer System Fermentation Airlocks are designed for effortless home fermentation, allowing you to create delicious, probiotic-rich foods like kimchi and sauerkraut in regular mouth Mason jars. This 4-pack system features an automatic degassing process, airtight storage lids, and is made from BPA-free materials, making it a safe and reliable choice for health-conscious consumers. ## Description Product description The Fermentology Sauer System uses water to create an oxygen barrier that handles burping bubbling ferments automatically so you don’t have to. This is an easy DIY pickle method and makes fermenting and pickling a breeze. All you need to do is add your fresh vegetables to a wide mouth Mason jar, pour in a salt water brine, set up the complete airlock system and let Fermentology do the rest. When the ferment is complete, you’ll have tangy, sour and probiotic nourished vegetables that are a great source of vitamins. Simply remove the airlock and add the silicone stopper to turn the airlock lid into a sealed Tough Top for fridge storage. Each airlock setup includes 1x airlock, 1x Tough Top lid (includes silicone gasket and grommet), and a silicone stopper; 4 airlock setups come in a pack. Make kraut, like premium probiotic sauerkraut, pickles, garlic vegetable mixes, and traditional German, Polish and Chinese dishes, or try your hand in brewing homemade kombucha, mead, super kefir and kvass. You can even ferment your own garden harvest, like peppers, carrots, and more! The Fermentology Sauer System can be used with a variety of other Fermentology or Masontops supplies, including a fermentation weight, pebble or stone, pounder, tamper, storage top, and reused for year upon year of use. You can get all your equipment for fermenting from Fermentology! Make Sauerkraut, Pickles, Kimchi and More The Sauer System is designed specifically for fermenting in Mason jars. All you need are some glass jars with a wide mouth, your favorite veggies, and some salt. Mason and canning jars are perfect for fermenting in because of their convenient size and popularity – you probably already own many! Traditional and Reliable Method Water barrier airlocks are a tried-and-true way to keep oxygen from spoiling ferments, while also automatically venting gas build up. The inner chambers of the Fermentology Sauer System are strategically designed to effectively block air and vent gas so you don’t need to worry about your prep going to waste! Make Probiotic Superfoods Fermented vegetables are a good source of probiotics and are easy to make at home. When a vegetable is fermented, it not only takes on a pleasantly sour and tangy taste and becomes naturally preserved, but it also maintains it’s original nutrients with the addition of probiotics. Includes Storage Lids and Stoppers Each airlock equipment set up includes a grommet fitted lid that either an airlock or stopper can be fitted into, depending on if you’re in fermenting or storing mode. The included Mason jar top is fitted with a silicone gasket for an airtight seal and can serve a number of uses besides fermenting! Sized for Everyday Use Ceramic crocks and large fermenting containers take up a lot of unnecessary kitchen space in your home fermentation station. Mason jars and the Sauer System are the perfect set up for the every day home fermenter. Active ferments can easily be kept in kitchen cupboards and drawers to save counter space and reduce clutter. Food Safe, Quality Materials All Fermentology products are made of food safe and high-quality plastics and silicones. The items included in this box kit are BPA-free and phthalate-free. All of our fermenting equipment is designed in-house by a group of avid fermenters in Toronto, Canada. Part of a Suite of Fermentation Products This set is one of many fermentation tools Fermentology has to offer. Our other products include waterless airlocks with pumps, fermentation weights, and vegetable tampers. We have equipment for all styles and levels of experience when it comes to lacto fermenting vegetables. Review: The BEST, HIGHEST QUALITY Mason jar fermentation airlock system available! Period!!! - The "heart" of the airlock system is the Masontops lid. It is heavy-duty and highly resistant to absorbing any aromas or odors from fermentations. I have used Masontops lids on homemade pickled peppers and kim chi, as well as on other items for several years...and I am impressed with their quality! Integral to the lid is the thick, heavy-duty, silicone sealing ring, which is replaceable, should it need to be replaced. The sealing ring is also removable for thorough washing/cleaning. It appears that the silicone grommet in the lid is also easily replaceable, if that is ever needed. The airlocks are well designed...and the stopper plug for refrigerated storage without changing lids, completes the airlock system. I've been fermenting for decades...wine, beer, sauerkraut, chili peppers and full sour pickles. As with most things, I began with a "kit" or a "starter set" (model railroading, here). Kits are basically good to see if you are really interested in learning more about the "skills" needed to pursue that interest/hobby. So too, it was, with Mason Jar fermentation. Mason jars have their limits...they need "headspace", so whatever you are fermenting is limited to roughly 50%-80% of the jar's stated capacity...and "more" headspace creates fewer "issues" than "not enough", especially in the early, comparatively "violent" stages of fermentation. My first Mason jar "kit" included 3 lids with integral "waterless" airlocks, 3 fermentation weights (stones) and a vacuum pump (large syringe)...and a recipe book which, well...it is what it is, as it were. Air, particularly oxygen and the air-borne, wild bacteria and mold spores, are NOT friendly to fermentations; and the vacuum pump was a bit of a "joke"...more "well, it won't do any harm"; but I seriously question it's functional value. Basic rule is that you don't break a fermentation "seal" unless there is still a sufficiently active ferment present that will re-establish the necessary carbon dioxide "buffer" in the headspace. "Sampling" actively fermenting foods, including wine or beer, reveals precious little about the finished product. Fermentation is complete when it's done...and not before...period. That said, there is really nothing safer than a properly maintained, water-filled, correctly functioning airlock for a "closed system"...in this case, the jar and the lid/airlock with the sealing ring. I will state that I am NOT interested in the probiotic value/benefit of the fermented foods, I ferment for TASTE...my goal is to make them shelf-stable (sterile canning) or refrigerate them for relatively immediate consumption upon the completion of the ferment. The ONLY truly usable item that I found in the original kit was the fermentation weights with their molded-in "finger grab"; but even with most wide-mouth Mason jars "of size", there is still a small shoulder to contend with, so that may pose challenges, depending on what one is fermenting. Fermentation "springs" and "gates" may offer increased functionality for some food items. Needless to say, my first Mason jar fermentation kit was quite disappointing; but at least I learned what NOT to buy/use! The waterless, one-way airlocks may have their place for some folks, but NOT in "my kitchen"! There is no visual indication that they are functioning...and they are rather easily subjectable to damage that may not be easily discernable. I and my wife have reached an age where "large scale for home use", crock-based fermentations of sauerkraut, peppers and pickles result in far more than we can use. The amount of canning and/or refrigerator space requirements means that large-scale fermentations are simply NOT as much fun as they once were! Mason jar ferments are small enough to make it all FUN again; but even on a small scale, there is absolutely no substitute for quality components and "sound" fermentation and preservation practices. Fermentology's Sauer System lids and airlocks ARE the quality components that you really need to make every ferment as successful as it can be!!! Review: great quality water locks with lids for any size wide mouth mason jar - Great product. I have tons of mason jars of varying sizes, and didn't want to buy different glass jars to use, so this kit works perfectly for any brand mason jar with a WIDE mouth, not regular mouth size. Brewing up some lacto fermented ginger beer in no time! I made my ginger bug over 10 days with some store bought ginger, then brewed up a batch of ginger liquid base for two jars. Pored in, inoculated with some of the ginger bug, and away we go! My light sugar count is still bubbling away every 3 minutes or so several days after inoculating with the bug. Works great and recommend them. They don't feel cheap like some units, and look to last a lifetime if treated well. Don't buy a generic knockoff. Stick with the TEAL. Buy Fermentology! ## Features - FERMENT VEGGIES AND MORE – This Mason fermenter system can be used for fermenting kimchi, pickles, sauerkraut and other nourished food and drinks in glass Mason jars - EASY, RELIABLE SYSTEM – The Sauer System uses a water barrier hosted in an inner airlock chamber to effectively burp lacto ferments through an automatic degassing process that creates an anaerobic environment. You don’t have to monitor ferments! - INCLUDES AIRTIGHT STORAGE LIDS – The silicone stopper turns the airlock lid into a Tough Top Mason jar lid for storing ferments in the fridge. Lids and all components of the Sauer System are made of BPA-free and phthalate-free plastic and silicone. - MAKE PROBIOTIC FOODS AT HOME – Kraut and other fermented veggies are loaded with natural, healing probiotics. Fermented vegetables are tangy, sour and good for your gut. All you need is salt and any vegetable! - DESIGNED FOR ANY REGULAR MOUTH MASON JAR – Make up to 4 ferments at once in regular mouth glass Mason jars, including Ball, Masontops, Bernardin, Kerr and more, in any volume of jar (small or large volumes), including quarts, pints and gallons. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B077YR7T6X | | Best Sellers Rank | #416,561 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #99 in Brewing & Fermentation Airlocks | | Brand | Fermentology | | Brand Name | Fermentology | | Closure Type | Airlock | | Color | White | | Container Shape | Round | | Customer Reviews | 4.6 out of 5 stars 1,285 Reviews | | Food Storage Container Airtightness | Airtight | | Is the item dishwasher safe? | Yes | | Is the item microwaveable? | Yes | | Item Form | Jar with Airlock Closure | | Item Weight | 0.23 Kilograms | | Manufacturer | Fermentology | | Material | Glass | | Material Feature | BPA Free, Non Toxic | | Material Features | BPA Free, Non Toxic | | Material Type | Glass | | Other Special Features of the Product | Automatic Degassing Airlock System | | Package Quantity | 1 | | Product Care Instructions | Dishwasher Safe, Microwave Safe, Refrigerator Safe | | Special Feature | Automatic Degassing Airlock System | | UPC | 829188000608 | | Unit Count | 4.0 Count | ## Product Details - **Material:** Plastic - **Color:** White - **Brand:** Fermentology - **Style:** SMALL Mouth 4PK - **Item Weight:** 0.23 Kilograms ## Images ![Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack - Image 1](https://m.media-amazon.com/images/I/61NR52u2+QS.jpg) ![Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack - Image 2](https://m.media-amazon.com/images/I/713-ohbM+UL.jpg) ![Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack - Image 3](https://m.media-amazon.com/images/I/71Uvd+V4SZS.jpg) ![Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack - Image 4](https://m.media-amazon.com/images/I/71zc+LkE1TL.jpg) ![Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack - Image 5](https://m.media-amazon.com/images/I/71JlIEh+yuS.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ The BEST, HIGHEST QUALITY Mason jar fermentation airlock system available! Period!!! *by F***D on November 4, 2020* The "heart" of the airlock system is the Masontops lid. It is heavy-duty and highly resistant to absorbing any aromas or odors from fermentations. I have used Masontops lids on homemade pickled peppers and kim chi, as well as on other items for several years...and I am impressed with their quality! Integral to the lid is the thick, heavy-duty, silicone sealing ring, which is replaceable, should it need to be replaced. The sealing ring is also removable for thorough washing/cleaning. It appears that the silicone grommet in the lid is also easily replaceable, if that is ever needed. The airlocks are well designed...and the stopper plug for refrigerated storage without changing lids, completes the airlock system. I've been fermenting for decades...wine, beer, sauerkraut, chili peppers and full sour pickles. As with most things, I began with a "kit" or a "starter set" (model railroading, here). Kits are basically good to see if you are really interested in learning more about the "skills" needed to pursue that interest/hobby. So too, it was, with Mason Jar fermentation. Mason jars have their limits...they need "headspace", so whatever you are fermenting is limited to roughly 50%-80% of the jar's stated capacity...and "more" headspace creates fewer "issues" than "not enough", especially in the early, comparatively "violent" stages of fermentation. My first Mason jar "kit" included 3 lids with integral "waterless" airlocks, 3 fermentation weights (stones) and a vacuum pump (large syringe)...and a recipe book which, well...it is what it is, as it were. Air, particularly oxygen and the air-borne, wild bacteria and mold spores, are NOT friendly to fermentations; and the vacuum pump was a bit of a "joke"...more "well, it won't do any harm"; but I seriously question it's functional value. Basic rule is that you don't break a fermentation "seal" unless there is still a sufficiently active ferment present that will re-establish the necessary carbon dioxide "buffer" in the headspace. "Sampling" actively fermenting foods, including wine or beer, reveals precious little about the finished product. Fermentation is complete when it's done...and not before...period. That said, there is really nothing safer than a properly maintained, water-filled, correctly functioning airlock for a "closed system"...in this case, the jar and the lid/airlock with the sealing ring. I will state that I am NOT interested in the probiotic value/benefit of the fermented foods, I ferment for TASTE...my goal is to make them shelf-stable (sterile canning) or refrigerate them for relatively immediate consumption upon the completion of the ferment. The ONLY truly usable item that I found in the original kit was the fermentation weights with their molded-in "finger grab"; but even with most wide-mouth Mason jars "of size", there is still a small shoulder to contend with, so that may pose challenges, depending on what one is fermenting. Fermentation "springs" and "gates" may offer increased functionality for some food items. Needless to say, my first Mason jar fermentation kit was quite disappointing; but at least I learned what NOT to buy/use! The waterless, one-way airlocks may have their place for some folks, but NOT in "my kitchen"! There is no visual indication that they are functioning...and they are rather easily subjectable to damage that may not be easily discernable. I and my wife have reached an age where "large scale for home use", crock-based fermentations of sauerkraut, peppers and pickles result in far more than we can use. The amount of canning and/or refrigerator space requirements means that large-scale fermentations are simply NOT as much fun as they once were! Mason jar ferments are small enough to make it all FUN again; but even on a small scale, there is absolutely no substitute for quality components and "sound" fermentation and preservation practices. Fermentology's Sauer System lids and airlocks ARE the quality components that you really need to make every ferment as successful as it can be!!! ### ⭐⭐⭐⭐⭐ great quality water locks with lids for any size wide mouth mason jar *by K***Y on October 5, 2018* Great product. I have tons of mason jars of varying sizes, and didn't want to buy different glass jars to use, so this kit works perfectly for any brand mason jar with a WIDE mouth, not regular mouth size. Brewing up some lacto fermented ginger beer in no time! I made my ginger bug over 10 days with some store bought ginger, then brewed up a batch of ginger liquid base for two jars. Pored in, inoculated with some of the ginger bug, and away we go! My light sugar count is still bubbling away every 3 minutes or so several days after inoculating with the bug. Works great and recommend them. They don't feel cheap like some units, and look to last a lifetime if treated well. Don't buy a generic knockoff. Stick with the TEAL. Buy Fermentology! ### ⭐⭐⭐⭐⭐ These were so easy to use! *by A***L on October 5, 2024* These were so easy to use! They fit the jars beautifully and seem durable enough to keep going through many uses! The quality is worth mentioning as they don’t seem cheap or flimsy and they’re nice and thick. I really like that they’re made of a good plastic that will keep going and not rust over time. They are sleek looking and aren’t an eye-sore when they’re on the jars. ## Frequently Bought Together - Fermentology Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack - Masontops Pickle Pebble Glass Infinity Weights for Fermenting - Pickling Weight Set - Small/Regular Mouth Mason Jar Fermentation - Masontops Pickle Packer - Acacia Wood Vegetable Fermentation Tamper - Cabbage Sauerkraut Pounder - Fermenting Food Tool --- ## 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/53134098-sauer-system-fermentation-airlocks-lids-grommets-gaskets-stoppers-for-regular](https://www.desertcart.co.uk/products/53134098-sauer-system-fermentation-airlocks-lids-grommets-gaskets-stoppers-for-regular) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-24*