Best Reusable Fermentation Lids for Getting a Grip

How the Five Compare on the Numbers

Not one listing in this pool publishes a handle. That is worth saying first, because a fermentation lid has to come off a jar that has been sitting under slight negative pressure for a week, with brine on the glass and on your fingers. Whatever you pull on is not a handle, and on these five it is five different things.

One gives you a raised date tracker ring to turn. One is deliberately flat and sells the flatness as a storage feature. One gives you a pump that clips onto a valve. One gives you a spring inside the jar you have to fish out. One gives you an airlock tower standing proud of the lid that doubles as something to twist.

The first row is empty across all five, and across all sixteen listings in this pool. No tab, no pull ring, no lifting lug and no textured edge is published anywhere. What the table does show is that every listing publishes something else standing above the lid surface, and on four of the five that accidental feature is the only thing a wet hand has to work with.

The Lid That Is Deliberately Flat

Low Profile Sold as a Feature

Masontops publishes a bullet headed low profile design, stating that its waterless pipe system uses a low profile lid that makes storage easier and takes up less space. That is a real advantage in a cupboard of jars and it is also a statement that there is nothing to hold. Its dimension fields read 0.5 x 3.3 x 3.3 in, so the whole cap is half an inch tall including the valve.

It is a one way waterless valve in food safe silicone, four to a pack, BPA free and stated to contain no phthalates, and it goes in a dishwasher. What it publishes about removal is nothing at all: there is no tab, no ring and no mention of how the cap comes off a jar that has been sealed for a fortnight.

The Same Material, With a Ring on Top

Mfacoy solves the problem by accident. Its silicone cap carries an easy to set date tracker, which is a raised ring you turn to mark the day the batch started, and a raised ring you turn is a raised ring you can also grip. The listing sells it as record keeping and it is the only removal aid on any silicone cap here.

Otherwise the two are close cousins: 100 percent BPA free silicone, a patented one way valve that vents carbon dioxide without burping, dishwasher safe, and a low profile the listing says saves space in cabinets or drawers. Mfacoy publishes 3.31 x 3.31 x 0.1 in and 0.24 lb, and Masontops publishes no weight at all.

Two Kits Where the Grip Is a Separate Object

A Pump You Hold Instead of a Lid

FERMENTER LIDS ships four lids with airlock valves and an oxygen extraction pump, and the pump is the thing your hand actually closes around. It is applied to the valve to draw air out rather than waiting for the ferment to push it out, so on this kit the daily interaction is with a handheld tool and not with the lid at all.

It also publishes a built in date setter and a user guide, a lifetime warranty, and 0.8 lb, the heaviest purchase on this page. Its dimension fields publish 3.62 x 3.62 in with no third figure, so how tall the assembled lid and valve stand above the jar rim is not published anywhere.

A Spring You Have To Reach Past

The stainless spring kit inverts the problem. It publishes stainless steel lids, pressure springs and silicone check valves, and states that the springs press all the ingredients completely under the brine. That means the lid comes off and then a compressed stainless spring has to be lifted out of a jar full of brine, which is a second grip problem the listing does not address.

It publishes a dry one way vent valve, a stated fit for 16, 24, 32 and 64 oz wide mouth jars, and package figures of 3.5 x 3.5 x 1.4 in. It publishes no weight, no lid diameter of its own and nothing about how either the lid or the spring is handled when wet.

The Airlock as an Accidental Handle

A Tower You Can Twist

JILLMO publishes four stainless steel lids with seals, four BPA free airlocks and four silicone grommets, and the airlock is a plastic tower standing well clear of the lid. Unscrewing a jar by holding the airlock is not what the maker intends and it is what most people will do, because it is the only thing on the assembly that is not flat and not wet with brine.

The listing is the most specific here about fit, publishing 3.38 inch wide mouth jars given also as 86 mm, and a range from 8 oz to 64 oz. It publishes 0.6 lb, package figures of 3.38 x 3.38 x 1.18 in, spare silicone grommets in the box and a one year replacement for damaged small parts.

What the Spares Tell You

JILLMO and FERMENTER LIDS are the only two picks that publish anything about replacement. JILLMO includes extra grommets and a one year replacement promise for small parts, and FERMENTER LIDS publishes a lifetime warranty. Both are multi part assemblies, which is precisely why they need it.

The two silicone caps publish no spares because there is nothing to lose: one piece, one valve, no grommet and no airlock. That is the trade this page is really about. The parts that give you something to hold are the same parts that can be dropped down the sink, and the lid with nothing to hold has nothing to lose either.

What Nobody Measures

No Height Above the Jar Rim

Not one of these five publishes how far the assembly stands above the jar. Mfacoy publishes a 0.1 inch third figure, which is a flat sheet rather than a cap with a valve in it. Masontops publishes 0.5 inches, which is plausible for a low profile pipe. FERMENTER LIDS publishes two figures and no third, and the two kit listings publish only cartons at 1.4 and 1.18 inches deep.

That figure matters for exactly the reason this page exists. The height above the rim is what a hand has to get around, and it is also what decides whether a shelf closes over a fermenting jar. Between them these five publish one flat sheet, one cap height and two carton depths.

No Grip Texture Anywhere in the Pool

Elsewhere in this pool a glass fermentation weight publishes a dotted knob handle with enhanced friction, and a second publishes a ribbed handle, so the category clearly knows how to describe a grip when it wants to. Not one of the sixteen lid listings does the same for a lid.

The closest any lid comes is a material claim. The silicone caps are grippy by nature when dry and slippery when wet, and the stainless lids are the opposite of grippy in both states. No listing publishes a textured edge, a knurled rim or a raised tab, and no listing says what to do when the cap will not shift.

Which One Fits Your Kitchen

The fermenter who wants something to turn. Mfacoy publishes a raised, settable date tracker on a BPA free silicone cap with a one way valve, at 0.24 lb and 3.31 x 3.31 x 0.1 in. The ring is there for record keeping and it is the only thing on any silicone cap here that a wet hand can grip.

The fermenter with a stack of jars. Masontops publishes a low profile waterless valve cap, four to a pack, and sells the flatness as a storage advantage at 0.5 inches tall including the valve. Accept that there is nothing to hold and that it is dishwasher safe silicone.

The fermenter who wants to control the air. FERMENTER LIDS supplies four lids, airlock valves, an oxygen extraction pump, a date setter and a user guide at 0.8 lb, with a lifetime warranty. The pump is the object your hand uses, not the lid.

The fermenter who wants the weight built in. The stainless spring kit publishes lids, pressure springs and silicone check valves for 16 to 64 oz wide mouth jars. The spring holds the vegetables down and is also a second thing to lift out of the brine, which the listing does not mention.

The fermenter who wants the fit confirmed. JILLMO publishes 3.38 inch and 86 mm wide mouth jars from 8 oz to 64 oz, four stainless lids, four airlocks, four grommets, spare grommets and a one year replacement, at 0.6 lb. The airlock tower is what most hands will end up using.

What We Could Not Verify

These are the things a wet hand needs and this pool does not publish.

• Not one listing in this pool publishes a handle, a pull tab, a lifting lug or a textured rim on a lid.
• No listing publishes how far the assembled lid and valve stand above the jar rim.
• No listing says how a lid is removed after a week under negative pressure.
• The spring kit publishes a spring that sits under the brine and nothing about lifting it out.
• Mfacoy publishes a 0.1 inch third figure, which cannot include the valve on its own cap.
• Only two of the five publish anything about replacement parts, and both are multi part kits.