---
product_id: 57187364
title: "Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack"
brand: "fermentology"
price: "€ 78.23"
currency: EUR
in_stock: false
reviews_count: 13
category: "Fermentology"
url: https://www.desertcart.nl/products/57187364-sauer-system-fermentation-airlocks-lids-grommets-gaskets-stoppers-for-regular
store_origin: NL
region: Netherlands
---

# Fits all regular mouth Mason jars Automatic water barrier degassing BPA & phthalate-free safe materials Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack

**Brand:** fermentology
**Price:** € 78.23
**Availability:** ❌ Out of Stock

## Summary

> 🥒 Unlock the Future of Fermentation—Effortless, Fresh & Probiotic-Packed!

## 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?** € 78.23 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/57187364-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

- • **Multi-Jar Magic:** Compatible with all regular mouth Mason jars—pints to gallons, Ball to Kerr, ferment 4 batches at once.
- • **Probiotic Powerhouse:** Craft gut-loving, tangy fermented veggies packed with natural probiotics for wellness boost.
- • **Safe & Sustainable Materials:** Made from BPA-free, phthalate-free plastic and silicone—healthy for you and the planet.
- • **Fridge-Ready Airtight Storage:** Silicone stopper converts airlock lid into a tough, airtight Mason jar lid for seamless fridge storage.
- • **Effortless Fermentation Mastery:** Automatic degassing airlock creates perfect anaerobic environment—no babysitting needed.

## Overview

The Sauer System Fermentation Airlocks 4-Pack is a premium, automatic degassing airlock set designed for regular mouth Mason jars. Made from BPA- and phthalate-free materials, it enables hassle-free fermentation of kimchi, sauerkraut, pickles, and more by maintaining an anaerobic environment. The included silicone stoppers double as airtight lids for fridge storage, supporting up to 4 simultaneous ferments in various jar sizes. Dishwasher, microwave, and refrigerator safe, this system is perfect for millennial home fermenters seeking health, convenience, and sustainability.

## Description

Free delivery and returns on eligible orders. Buy Fermentology Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack at desertcart UK.

Review: Great System - This is a very good system for fermenting small batches imo, especially if one is into canning too, because jars become multi-purpose. I have five on the go currently, and I will be adding today's picked gherkins, and would have more fermenting if it wasn't for one major issue - desertcart Prime are now using Evri and our last few orders of this product have disappeared/been returned. Anyway, rant over. The lids are solid and easy to clean and beat any other small-batch system that I have used by a country mile. For large batches I use traditional crocks, but wouldn't hesitate to use these if I had suitable >2litre jars. Their glass weights are good too.
Review: do what they are meant to - good fit in my fermentation system do their job well.

## 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 | 1,039,997 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 101 in Fermentation Airlocks |
| Closure type | Airlock |
| Container Shape | Round |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,615) |
| Date First Available | 15 Dec. 2017 |
| Dishwasher safe? | Yes |
| Is microwaveable | Yes |
| Item Weight | 227 g |
| Item form | Jar with Airlock Closure |
| Item package quantity | 1 |
| Item weight | 0.23 Kilograms |
| Manufacturer | Fermentology |
| Model Number | FTLGY-7000-4-RM |
| Product Dimensions | 18.8 x 8.61 x 8.61 cm; 227 g |
| Product care instructions | Dishwasher Safe, Microwave Safe, Refrigerator Safe |
| Set Name | 4-Pack |
| Size | SMALL Mouth 4PK |
| Special Features | Automatic Degassing Airlock System |
| Special feature | Automatic Degassing Airlock System |
| UPC | 829188000608 |

## Product Details

- **Brand:** Fermentology
- **Colour:** White
- **Material:** Plastic
- **Material feature:** BPA Free, Non Toxic
- **Recommended uses for product:** Vegetables

## 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/41Ht0+KWPNL.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/41gGAwhwnwS.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/51S0dE5a+sL.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/51SnMHyWLjS.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/51UjnuzdA-L.jpg)

## Questions & Answers

**Q: How wide are the lids in centimetres?**
A: 7cm internal dia

**Q: Do these fit the standard UK kilner jars? The ones for jam / canning wirh the 2 piece lids that come in 1 litre and half litre sizes?**
A: No

**Q: Has anyone tried washing the lids not airlock in the dishwasher?**
A: Yes no problem on daily wash

**Q: I’m looking for lids for the regular mouth. Where can I find these? Thanks**
A: You can find them on Amazon

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great System
*by M***D on 14 October 2022*

This is a very good system for fermenting small batches imo, especially if one is into canning too, because jars become multi-purpose. I have five on the go currently, and I will be adding today's picked gherkins, and would have more fermenting if it wasn't for one major issue - Amazon Prime are now using Evri and our last few orders of this product have disappeared/been returned. Anyway, rant over. The lids are solid and easy to clean and beat any other small-batch system that I have used by a country mile. For large batches I use traditional crocks, but wouldn't hesitate to use these if I had suitable >2litre jars. Their glass weights are good too.

### ⭐⭐⭐⭐⭐ do what they are meant to
*by L***F on 19 February 2022*

good fit in my fermentation system do their job well.

### ⭐⭐⭐⭐⭐ Fermentation lids with air locks
*by A***B on 16 September 2020*

The lids were delivered in a timely fashion, they are a wide mouth lid that 4 lid top, 4 air locks and 4 stoppers.

## 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.nl/products/57187364-sauer-system-fermentation-airlocks-lids-grommets-gaskets-stoppers-for-regular](https://www.desertcart.nl/products/57187364-sauer-system-fermentation-airlocks-lids-grommets-gaskets-stoppers-for-regular)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-16*