






🥒 Unlock the art of effortless fermentation—your gut will thank you!
The Sauer System Fermentation Airlocks 4-pack transforms regular mouth Mason jars into professional-grade fermenters with an automatic water-barrier airlock that ensures anaerobic conditions without monitoring. Made from BPA-free, phthalate-free materials, these lids and stoppers also double as airtight fridge storage, enabling you to craft multiple probiotic-rich ferments like kimchi and sauerkraut simultaneously with ease.









| 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
Hace 3 semanas
Hace 2 semanas