A fermentation lid turns an ordinary mason jar into a vessel for sauerkraut, pickles or kimchi. The main split is how gas escapes: a waterless one-way valve, a water-filled airlock, or a spring-loaded stainless lid. Jar mouth size matters too, since regular and wide mouth jars need different lids.
The six lids below cover silicone valve lids, a stainless kit with springs and a stainless set with water airlocks. Sizes, materials and pack counts come from each product’s listing page. We have not used these lids ourselves. Maker claims are described as the makers’ own.
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What to Look For
| Feature | Why it matters |
|---|---|
| Airlock type | Waterless valves need no topping up; water airlocks need some water |
| Jar mouth | Regular is about 70 mm, wide is about 86 mm |
| Material | Silicone, plastic or stainless steel differ in care |
| Pack size | More lids let you run several jars at once |
Specs at a Glance
| Lid | Jar fit | Type and material | Notes |
|---|---|---|---|
| Masontops Pickle Pipes | Wide mouth | Waterless valve; silicone | Low profile; the listing says dishwasher safe |
| Stainless kit with springs | Wide mouth, 16 to 64 oz | Silicone valve; stainless steel lids | Includes hold-down springs; 3 pieces |
| Miniguysa 2-in-1 | 70 mm and 86 mm | Waterless valve; silicone | 5 colors; date tracker; 5 lids |
| Miniguysa regular mouth | Regular mouth, 70 mm | One-way valve; silicone | Used with the jar’s own metal ring; 5 lids |
| Easy Fermenter | Wide mouth | Airlock; plastic | 4 lids; pump not included |
| Klemon 6 set | 86 mm wide mouth | Water airlock; 18/8 stainless lid | 6 lids; plastic airlocks are 3 pieces |
The 6 Best Fermentation Lids
1. Masontops Pickle Pipes Airlock Fermentation Lids
A four-count pack of silicone lids for wide mouth jars with a one-way waterless valve that vents gas on its own. The maker calls it a low-profile one-piece design that stores easily and goes in the dishwasher.
Suits: a simple waterless lid. Strengths: no water to refill and a flat shape. Weaknesses: wide mouth only here. Skip it if your jars are regular mouth.
2. Stainless Steel Fermentation Lids Kit With Springs
A three-piece generic kit with stainless steel lids, hold-down springs and silicone air valves, listed for 16, 24, 32 and 64 ounce wide mouth jars. The springs press ingredients down under the brine.
Suits: a lid and weight in one kit. Strengths: springs are included and the lids are metal. Weaknesses: an unnamed brand with few listing details. Skip it if you want a known maker.
3. Miniguysa 2-in-1 Silicone Fermentation Lids, 5-Pack
Five silicone lids, each listed to fit both 70 mm regular and 86 mm wide mouth jars. Each has a self-burping valve and a press-to-set date tracker, and the lids come in five colors.
Suits: mixed jar sizes. Strengths: one lid fits both mouths and tracks the date. Weaknesses: jars and weights are not included. Skip it if you want a metal lid.
View 2-in-1 Silicone Fermentation Lids for Regular/Wide Mouth Mason Jars, 5-Pack on Amazon
4. Miniguysa Regular Mouth Silicone Fermentation Lids, 5-Pack
A five-pack of silicone lids for regular mouth (70 mm, 2.75 inch) jars such as Ball and Kerr, with a one-way valve. They pair with the jar’s original metal ring, which is not included.
Suits: small-batch regular jars. Strengths: a regular mouth fit and five colors. Weaknesses: needs your own rings. Skip it if you use wide mouth jars only.
5. Easy Fermenter Fermentation Lids, 4 Pack
Four plastic airlock lids made for wide mouth mason jars, with a gasket the maker calls leak-proof. The listing says the pump is not included. It does not give a jar diameter, so check the fit before buying.
Suits: a plain plastic lid set. Strengths: four lids with gaskets. Weaknesses: sparse size data. Skip it if you want listed measurements.
6. Klemon 6 Set Stainless Steel Fermentation Lids
Six 18/8 stainless steel wide mouth lids with silicone rings, six three-piece BPA-free plastic water airlocks and grommets. The listing says they fit 86 mm jars from 8 to 64 ounces, and the airlocks take apart for cleaning.
Suits: a traditional water airlock. Strengths: six metal lids and airlocks that come apart. Weaknesses: water must be added to each airlock. Skip it if you want waterless.
Care and Setup
- Match the lid to your jar’s mouth size before buying.
- Wash valves and airlocks as the maker describes.
- Leave headspace in the jar.
- Label each jar with the date.
Mistakes to Avoid
- Using a wide mouth lid on a regular mouth jar.
- Forgetting to add water to a water airlock.
- Blocking a valve with food.
- Assuming jars or weights are included.
Fermentation Lid FAQ
What is a waterless airlock?
It is a one-way silicone valve that lets gas out without a water chamber.
Are jars included?
Not in the listings here. They state that jars are not included.
The Short Version
For a simple waterless lid, the Masontops. For springs in the kit, the stainless kit. For both jar sizes, the Miniguysa 2-in-1. For regular mouth, the Miniguysa regular. For a plastic set, the Easy Fermenter. For water airlocks, the Klemon.
