---
product_id: 57187364
title: "Fermentology Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack"
brand: "fermentology"
price: "HK$561"
currency: HKD
in_stock: false
reviews_count: 13
category: "Fermentology"
url: https://www.desertcart.hk/products/57187364-fermentology-sauer-system-fermentation-airlocks-lids-grommets-gaskets-stoppers-regular
store_origin: HK
region: Hong Kong
---

# Automatic degassing airlock system Airtight silicone lids for fridge storage BPA & phthalate-free safe materials Fermentology Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack

**Brand:** fermentology
**Price:** HK$561
**Availability:** ❌ Out of Stock

## Summary

> 🥒 Unlock the art of effortless fermentation—your gut’s new best friend!

## Quick Answers

- **What is this?** Fermentology Sauer System Fermentation Airlocks – Lids, Grommets, Gaskets, Stoppers – for Regular Mouth Mason Jars – 4 Pack by fermentology
- **How much does it cost?** HK$561 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/57187364-fermentology-sauer-system-fermentation-airlocks-lids-grommets-gaskets-stoppers-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:** Fits all regular mouth Mason jars from pints to gallons for versatile batch sizes.
- • **Gut-Boosting Probiotic Power:** Craft tangy, healing fermented veggies loaded with natural probiotics.
- • **Safe & Sustainable Materials:** BPA- and phthalate-free plastics and silicone for worry-free food prep.
- • **Fridge-Ready Airtight Storage:** Silicone stopper doubles as a tough top lid to keep your ferments fresh.
- • **Effortless Fermentation Mastery:** Set it and forget it with automatic degassing—no monitoring needed.

## Overview

The Fermentology Sauer System 4-Pack is a premium fermentation airlock kit designed for regular mouth Mason jars. Featuring an automatic degassing water barrier system, it creates an anaerobic environment that simplifies fermenting kimchi, sauerkraut, pickles, and more without constant monitoring. Made from BPA- and phthalate-free materials, it includes airtight silicone lids for seamless fridge storage. Compatible with popular Mason jar brands and sizes, this dishwasher- and microwave-safe set empowers home fermenters to craft probiotic-rich foods with ease and confidence.

## 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 | 1,016,382 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 100 in Fermentation Airlocks |
| Closure type | Airlock |
| Container Shape | Round |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,612) |
| 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

![Fermentology 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)
![Fermentology 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)
![Fermentology 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)
![Fermentology 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)
![Fermentology 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

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-27*