🥒 Unlock the art of effortless fermentation—your gut’s new best friend!
The Fermentology Sauer System is a 4-pack fermentation airlock kit designed for regular mouth Mason jars, enabling easy, automatic degassing to create an ideal anaerobic environment for fermenting vegetables like kimchi, sauerkraut, and pickles. Made from BPA-free, phthalate-free materials, it doubles as airtight storage lids, fits multiple jar brands and sizes, and is dishwasher, microwave, and refrigerator safe—perfect for millennial home fermenters seeking convenience, health benefits, and sustainable kitchen solutions.
| ASIN | B077YR7T6X |
| Best Sellers Rank | 1,002,694 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 100 in Fermentation Airlocks |
| Brand | Fermentology |
| Closure Type | Airlock |
| Colour | White |
| Container Shape | Round |
| Customer Reviews | 4.6 out of 5 stars 1,612 Reviews |
| Is the item dishwasher safe? | Yes |
| Is the item microwaveable? | Yes |
| Item Form | Jar with Airlock Closure |
| Item Package Quantity | 1 |
| Item Weight | 0.23 Kilograms |
| Item height | 3.39 inches |
| Manufacturer | Fermentology |
| Material | Plastic |
| Material Features | BPA Free, Non Toxic |
| Material feature | BPA Free , Non Toxic |
| Other Special Features of the Product | Automatic Degassing Airlock System |
| Product Care Instructions | Dishwasher Safe, Microwave Safe, Refrigerator Safe |
| Recommended Uses For Product | Vegetables |
| Recommended uses for product | Vegetables |
| Size | SMALL Mouth 4PK |
| Special feature | Automatic Degassing Airlock System |
| UPC | 829188000608 |
M**D
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 - 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.
L**F
do what they are meant to
good fit in my fermentation system do their job well.
A**B
Fermentation lids with air locks
The lids were delivered in a timely fashion, they are a wide mouth lid that 4 lid top, 4 air locks and 4 stoppers.
S**M
Nice Bit of Equipment
So much better than the silicone nipple style ones you can get on the cheap on Amazon. I'd much prefer the glass varieties but as a test run I got these and they haven't disappointed. Construct them, prepare your ferment, stick these in then forget about it for 6 weeks!
K**H
Well designed
Easy to use and keep an eye on
I**N
Awesome
Takes the hassle out of burping active ferments
N**S
Five Stars
excellent product if you ferment vegetables etc
A**R
Not compatible with Kilner jars
Nothing to tell you in the description if they’re suitable with the most generic mason jar on the market.
Trustpilot
1 month ago
3 weeks ago
