Easy Fermenter Lids Reviews: Our Honest Verdict

The short version

If you want the verdict before the detail, here is where the Easy Fermenter lands after reading through owner reports and the wider community's take on fermentation gadgets. It is a genuinely helpful beginner tool with a couple of honest caveats.

What's good:

• The one-way silicone valve self-burps, so gas escapes on its own and you never have to remember a burping schedule.
• No water airlock to keep topped up, unlike the bubbler lids a lot of beginners fight with.
• Pump-and-date routine is close to foolproof for a single jar of kraut, pickles, or pepper mash.
• Keeps oxygen off the surface, which is the failure new fermenters run into most.

What's not:

• The moving parts fail more than a plain lid: debris can lodge in the valve and let mold track into the jar.
• The pump vacuum bleeds off as fermentation gas refills the headspace, so it is not a lasting seal.
• Silicone can pick up smells and staining over time, and lively batches push brine up through the airlock.
• Wide-mouth jars only, so you cannot repurpose narrow-mouth bottles you already own.

Who it's for

This kit fits a specific buyer and irritates another. Sort yourself before you spend.

Buy it for:

• A first foray into fermentation where hands-off and hard-to-mess-up matters more than saving a few dollars.
• Single-jar batches of kraut, fermented pickles, hot sauce mash, or fermented garlic in wide-mouth mason jars.
• Anyone who has abandoned water-airlock bubblers because topping them up and watching for evaporation was a chore.

Skip it if:

• You already ferment confidently; a plain jar with a loosely seated lid does the same job for nothing.
• You want the least that can go wrong: the Masontops Pickle Pipes self-burp with no pump, dial, or valve to clog.
• You want everything matched in one purchase; a full starter kit bundles weights, lids, and a tamper together.

That last group has a loud voice in the fermentation community, and it is worth hearing before you buy. Plenty of long-time fermenters see any lid gadget as solving a problem they do not have:

Glass jar. Twist on lid. Vegetable and brine in. Profit. No hassle. No need for fermentation "product"

fun, did it probably not in your demographic though, i'm not a gadget guy, still do it grandma style with whatever jars are empty and a sharp knife to prep.

The specs that matter

The Easy Fermenter is a simple thing, but a few details decide whether it fits how you actually ferment:

Wide-mouth mason jars only: the lids thread onto standard wide-mouth jars and nothing else, so a narrow-mouth bottle or an odd import jar is out. If your jar collection is mixed, check the mouths before you order, because there is no universal fit here.

One-way valve plus a hand pump: the valve is the part that matters day to day, venting CO2 while blocking air from coming back in. The pump is a one-time move to evacuate the starting air; it is not a vacuum you re-pull, and it does not stay under vacuum once the ferment gets going.

A date dial on the lid: the top rotates to mark the day you started, which is handy when a shelf holds several jars at different stages. Some owners find it a gimmick and just use a piece of tape; it changes nothing about how the ferment performs.

How well it preserves

For the small, single-jar ferments the Easy Fermenter is built for, it does the core job well. The one-way valve vents gas and keeps oxygen off the surface, which is the whole point of an airlock, and owners who came to it from finicky water bubblers describe the switch as the moment fermenting got easy. One long-time hot-sauce maker picked up a valve lid with the pump and stopped losing batches to mold:

There is a guy on U tube and his channel is: "Alabama Hot Sauce". He does the vacuum ferment. as to why I do it? Oxygen is your enemy and I used to get failures (mold) in my ferments (Not just Kim Chi and not all the time). But haven't had a failure since the vacuum.You don't have to do it. But I got into it when I bought those one way valve lid and didn't have to use the bubblers (which never seemed to work for me). Since I got the vacuum pump along with the lid I figured I'd give it a try. The bubblers never seemed to work because I'd never see them actually send a bubble through them. So here with the vacuum I knew I was getting a lot of Oxygen out of the jar and then id wind up getting positive pressure in there in just two day. ( I could smell it). And I'm not even sure I'm making Kim Chi. I'm not using the real recipe but I'm using this salted Chili paste in a red tub. End product is close enough and I can add things like red radish (which is not a Kim Chi radish but it's all I can get.) And I can add in things like Tom Yum shrimp paste to change up the flavor too. If I have carrots left over I'll throw them in too. so it's not real Kim Chi. but it's good enough since you can't buy it down here in NE Florida. I've been to Korea several times and I know what the real stuff tastes like. My product is pretty close to the taste. (South Korea, Not the north)

Day to day the valve just breathes, and a lively batch will bubble gas and sometimes a little brine out through the top. That is the airlock working, not a fault, and experienced owners treat it as routine:

That is what they do....I just pour off the excess that bubbles out and put it back in the cupboard to continue

You will see that overflow yourself if you underleave headspace or your weight lets produce float up into the active zone. One owner a week into a pepper ferment ran straight into it:

I'm fermenting some mild peppers for sauce. Today I noticed some brine has pushed up through the airlock. I have about an inch of head space so not sure why it's pushing through. Some peppers have snuck around the weight so the surface might be more active than it should. Should I clean this off or just leave it be? The peppers have been fermenting for almost a week now and I was planning on leaving them for another week.

The honest limits here are about scale and mess, not the fermentation itself. This is a one-jar-at-a-time tool for household batches, and a vigorous ferment needs real headroom or it will push up through the valve. Within those bounds, the results are clean and consistent.

Built to last

This is the soft axis, and it is worth going in clear-eyed. The Easy Fermenter is not fragile, but it has more parts that can go wrong than a plain lid, and the parts are the point of failure. The one-way valve is a small opening, and anything that lodges in it can undo an entire jar:

I rinse them off and then spritz with some starsan. I've had only one failed ferment with these jars and it was from A seed or something lodging in the airlock valve and mold grew down in to the jar.

The pump side has a limit people do not always expect. It pulls the starting air out, but the vacuum does not last; as fermentation gas fills the jar, the compression releases and you are simply back to a vented jar. One commenter in the Easy Fermenter thread spelled out the mechanics for anyone expecting a permanent seal:

I don't know exactly what product the photo you took is, but in the case of such products, aren't they mostly containers that use an air pump to extract air and create a vacuum compression? If it's that kind of product, I believe the compression releases and the vacuum effect almost disappears as gas fills the interior. And in the case of fermented products, I think it is better to allow gas to escape from the inside to prevent explosive decompression, along with extra space to hold the gas. (In your case, since the vacuum compression would have already released, there's nothing more to do. Except wiping up what overflowed...)

Beyond the valve and pump, the recurring longevity gripes are the ones you would expect from a silicone-and-plastic kit used with pungent food: the silicone can hold onto garlic and pepper smells and pick up staining, and the whole system is locked to wide-mouth jars, so you cannot press old narrow-mouth bottles into service. That fit ceiling is a real frustration for people who want one lid to rule a mixed jar collection:

I feel this - almost like those who would buy this product aren't really understanding the soul of the fermentation hobby/craft. That being said, I wouldn't mind a product that makes the process easier to pick up. I haven't seen a truly universal self burping lid or a good weight that can expand to any jar size - these would be helpful for those that want to repurpose jars and bottles they have lying around.

None of this makes the kit a bad buy. Keep the valve clear, leave headspace, and rinse the silicone well, and a set lasts through plenty of batches. But the number below sits lower than the others because there is genuinely more to maintain and more to fail than on the dead-simple alternatives.

Living with it

Ease of use is where the Easy Fermenter earns its place, especially for someone new. The routine is pump the air out, set the date dial, and walk away. There is no water airlock to keep topped up and no burping schedule to remember, which removes the two things beginners most often get wrong. The community's own diagnosis of why first ferments fail reads almost like a spec sheet for what this kit is trying to fix:

Stinky failure examples and "is this mould" queries on fermentation forums like this one invariably result from beginner fermenters 1) not submerging 2) not excluding oxygen and/or 3) not getting salt ratio correct. If your tool can easily correct for these 3 things (esp 1 and 2), then you have a winner.

The dated lids also make a shelf of jars easy to track at a glance, and cleanup is a quick rinse rather than disassembling a three-piece bubbler. The bigger payoff is confidence: a tool that keeps oxygen out and vents pressure on its own is exactly the kind of thing that gets a nervous first-timer over the line, even among fermenters who would never use one themselves:

Done - good luck with your project! I'm not sure how much of the fermentation community would be into a gadget, it's a very bare bones hobby down to food quality and method mostly. But, if it gets more people comfortable with fermentation, all the better!

The gripes here are small. The date dial strikes some owners as gimmicky, the pump is one more thing to keep track of, and none of it is necessary if you already ferment by feel. But as a way to make the first few jars low-stress, the pump-and-forget approach delivers.

How it compares

The Easy Fermenter does not exist in a vacuum, and a few alternatives come up whenever people cross-shop it. Here is how it stacks against each.

Versus the Masontops Pickle Pipes: the Pickle Pipes are the simpler waterless option. They are silicone domes that self-burp with no pump, no dial, and no small valve to clog, so there is less to fail and nothing to maintain. You give up the pump-and-date routine, but for hands-off ferments a lot of owners prefer a cap that just breathes.

Versus a full Masontops starter kit: if you would rather buy everything matched at once, a complete kit bundles glass weights, airlock lids, and a tamper sized to work together. It costs more than a bare lid set, but you are not sourcing weights and tools separately after the fact.

Versus a plain jar and a loose lid: the cheapest cross-shop is no gadget at all. A wide-mouth jar with the lid seated finger-tight vents pressure and ferments fine, and confident fermenters swear it does everything a valve lid does for nothing. What you lose is the safety rail: no automatic burping, and it is on you to keep produce submerged and oxygen off the top.

Using it well

Get the most out of an Easy Fermenter with a few habits. Leave real headspace, at least an inch or two, so a lively ferment has somewhere to push before it reaches the valve. Weigh your vegetables down under the brine so nothing floats up into the active zone and clogs the valve or grows mold. Pump the air out once at the start and then leave the valve to do its job rather than re-pumping. Rinse the silicone gasket and valve well between batches, especially after garlic or peppers, and check that the little valve is clear before you seal a new jar.

If you are still deciding between lid systems, it is worth seeing them side by side before you commit. Our guide to the best mason jar fermentation lids walks through valve lids, waterless domes, and water airlocks in more depth, with the Easy Fermenter in context against the alternatives.

The bottom line

The Easy Fermenter is an easy tool to recommend for exactly one job: getting a beginner through their first jars without the two mistakes that ruin ferments. The self-burping valve and pump-and-date routine are genuinely low-stress, the results are clean for single-jar batches, and it removes the fiddliness that makes people give up on water airlocks. For that buyer, it is worth the small outlay.

What keeps this from a straight rave is the durability-and-necessity asterisk. The valve can clog, the vacuum does not hold, the silicone picks up smells, and it only fits wide-mouth jars, all of which is more to manage than the dead-simple Pickle Pipes or a plain lid. Buy it if the training wheels are the appeal and you ferment in wide-mouth jars. If you already ferment by feel, or you want the fewest things that can fail, spend less and go simpler.