Big Mouth Bubbler® EVO 2 - 6.5 Gallon

The fermenter itself is great. The screw on lid is flimsy and the gasket on mine didnt seal off the container. Afyer pitching my Krausen was like a volcano and no bubbles came from the air lock as it was seeping out of the lid. Swapped lids with the threadless EVO2 I have. Apparently the threadless ones are a little bit narrower. Had to modify the silicon seal to get it to work. BMB needs to figure the lid situation out.

Easier to clean than plastic and does not leave tiny scratches for microbes to grow! This is pretty heavy, especially when full so be sure to put it in a tote during fermentation because you wont be able to move it after its full. I suggest buying a carboy strap for this big boy!

I got one of these last year and it has been great. I still have my old glass carboy, but this thing has taken over its duties. When I read the reviews, everybody was bitching about the lid and how it wouldn't stay in place. I got mine and discovered it had the screw-on lid, even though that kind had supposedly been discontinued. I had to order the smaller drilled stopper for the air lock, but it has been a champ. Sure is easier to clean than ramming a brush down the old carboy.

I used the Big Mouth for primary fermentation of white wine. It has adequate volume to do a 23 liter primary, but if you have skins to add for a red wine this will not be big enough. I like the idea of using glass for fermentation instead of the plastic buckets. The lid that came with it was a screw on lid. Even though I tried several times the screw on lid would not provide a tight seal. I'm currently looking for some type gasket to use. But with a primary wine fermentation you don't actually need a tight seal until near the end of primary fermentation. I like the product and would like it more if I could get the lid to seal.

Glass is by far the best over plastic any day. I love this item and it does the job! The larger opening makes it easy to clean

I purchased one of these for my latest batch to pair with the Big Mouth Depth Charge. I couldn't get the Depth Charge to work with this unit because the Depth Charge uses the push in type universal lid and the opening on this glass 6.5 gallon piece was out of round by about 1/8" and would not allow the universal lid to fit in. I'm not sure if the outer portion of the neck with the threads is round either because the lid is very difficult to screw on compared to my 5 gallon gen 1 Big Mouth with the grey lid. Midwest was great about getting me a plastic 6.5 gallon to work with the Depth Charge so I could finish the batch in progress, but it's disappointing to see products that are designed to work with each other not do so due to quality control issues.

Love the big opening on the top. Easier to clean than other glass carboys. The lid needs to be wieghted down. I use an Olympic 2.5 pound weight. Some people really struggle with the lid and gasket. But with a slight modification I made I love it.

This is a great big mouth bubbler This is a great big mouth bubbler This is a great big mouth bubbler This is a great big mouth bubbler

So I've used both the original screw-on lid BMB and the newer twist-on version (both bought from Midwest). Two batches with the first version and two batches with the new version. All have been unable to seal properly and all made bad/infected batches of beer. I've been brewing for 10 years without any issues with carboys. I have the same issue with the newest BMB version that others have. The lid simply pops up and rests on the top of the BMB and won't stay on. I had to cut a piece of wood to fit around the lid so that I could weigh it down with paint cans. That worked but had my wort exposed for 24+ hours. Meh. Shouldn't have to do that.
While I absolutely love the concept (easy to clean) I can't recommend these. I gave it a second try and will never use these again. Too bad.

After trying numerous and incomplete ways to get the lid to hold its seal during active fermentation (closest I came was weighting down the lid with 12 volt battery packs), I inverted the seal gasket. The thicker end at the bottom when attaching to the lid does create an airtight seal. While it goes on a little harder and just "feels" wrong, it does create a tighter seal to address whatever the design flaw is.

That was the biggest source of frustration I've had with this fermenter. The other minor inconveniences (like cleaning the inside circles and ridges) are nothing compared to cleaning a conventional carboy. As other reviewers have stated, the thickness of the glass is impressive and big mouth opening make this glass boy a winner in my book.

I noticed in reading the reviews that some have reported the lid being forced out by pressure buildup during fermentation acting over the larger area presented to the pressure compared to the smaller size of a regular carboy "cork". I have not experienced this problem because I used the 3 -piece Airlock instead of the S Airlock shown in some of the pictures provided to show the Big Mouth Bubbler. The pressure created with use of the 3-piece Airlock is not sufficient to affect the lid to Jar seal when the amount of "sealing" water in the airlock is not excessive.

The lid is a poor design. It does not stay in place.

Midwest Supplies - great product
Midwest Supplies - great product
Midwest Supplies - great product
Midwest Supplies - great product

The wide mouth is wonderful to clean ,but the lid is no good .I brewed three batches in this large jar and the first batch the lid blew off and I used a 1 1/2 blow off hose . I woke up with a mess and the whole batch had to be throwed away $30.00 wasted. The second batch I taped the lid down with duct tape and it still leaked . The third batch was the same leaking lid taped down with duct tape I wasted $59.00 for the jar plus the $30.00 for the batch wasted . That is $90.00 wasted on this big mouth bubbler from your store, with all the bad reviews you are still selling this product. I have read a lot of revews from your store and northern brewer and still the same problems people are having is with the lid problem .You should pull the product and go back to the drawing board and design a new lid maybe with threads and a gasket . I'm going back to my carboys,they are harder to clean but does not leak with the blow off hose, I'm very disapointed with this, I should have read the reviews before I bought this product. Ron in PA

The fermenter is good and sturdy, the price is too high for it though. Compared to the other standard carboys, You can get those so much cheaper. I can't wait till the patent is up on these so others will make better. The lid does suck...and could be made better...kept popping off for me a couple times. I have 3 of these and they usually seal fine...but I don't like the fact not knowing when I might have a problem I have to solve wth duct tape...which works, but I I don't want to do that!

The wide mouth top makes cleanup a breeze and I love that. The "universal lid" needs a new design in order to get it to stay sealed. I placed the lid on the fermenter and within a minute it had pushed itself up to the point where it was just resting on the top. Attempted to even use duct tape to keep it secured, but it pulled that up and off as well. Searched online and saw someone suggest small spring clamps from the hardware.. excellent advice and it has worked perfectly since. I also found the ridges on the INSIDE to be counter-intuitive considering we don't want anything for the yeast to settle on and mix back in when moved. Since I only plan on using this for primary fermentation, I can live with it. If they made the inside completely smooth with no pits or ledges, I would give this a 4-star rating. Fix the lid to seal without buying clamps and I would give a 5-star.

These bubbles are a great fermenter,much lighter than the glass but just as effective. I also have the 5 gal ported which will make siphoning much easier. Clean up is a breeze.

I have been using the big mouth bubbler for several years. The good parts of the design is the large opening, clear material, lightweights, and the lifting straps. The not so good is the molded wall thickness uniformity, and the lid sealing issue. I have the older design so I use Sanitary Petro Gel lubricant around the edges of the white cap to make the seal. The new universal lid has a rubber seal but no means to hold the cap in place.
Why their engineers did not use a screw down ring to hold the lid down is a design flaw. Force is pressure X Area . Any back resistance will pop the lid off. A baby engineer mistake. Bottom line look for a better fermenter.

The glass itself is great, well made, sturdy (get the carying straps if you buy this). However I can not recommend buying this as the lids do not stay on. The universal lids don't work. I don't know why they ever thought of making these. Read all the reviews on here, on other websites, they do not work. Under good fermentation they pop up, losing the seal. I have tried several of them, I have tried making sure everything is dry before placing in... nothing works other than weighing it down with a weight of some sort. Horrible. Wish I never bought the big mouth bubbler because of this horrible lid.

The Glass Big Mouth Fermenters are great. Please go back to the threaded on lids. You need to tape them done to seal. Silicone seals simply allow the lids to pop off during fermentation. Almost sent them back.

I have read all of the past reviews and a redesign of the new silicone lid is necessary. The very first time I used it I ensured (as instructed by Customer Service) that the silicone lid and the neck of the fermentor were dry prior to sealing for my primary fermintation. Within 14 hours I returned to check on the fermintation and found that the lid had been pushed partially out of the neck of the bubbler and there no longer was a solid seal. Duck tape now seems to be the solution.

Please come up with a better solution and rectify the problem for all of the customers who have purchased the big mouth bubbler. Such a nice piece of brewing equipment with a fatal flaw.

Thank You.

Silicone seal slides up and will not stay on. please sell a screw lid that will stay on! Solid carboy but pretty worthless if lid will not stay on. Support said to use tape! Why not design something that works! Very disappointed!

The ease of cleaning is a plus as is transfer from the boil kettle but the lid will not stay in place. I have to physically hold the lid down so the airlock will work as it should.

This is a great fermentor and very easy to clean. The problem is the Universal Lid design. The lid does not stay on during the primary fermentation and continuously pops off even when the inner lid surface is dry as recommended. Sad that the company moved away from the original screw on lid which works infinitely better.

I have used the original Big Mouth Blubber for years in my brewing and loved it. I recently purchased one of the EVO 2 and am extremely disappointed in the new lid design. The new lid will pop off within seconds of putting it on, you do not need fermentation pressure - the naturally bad design will pop off the lid. They never product tested the design by real brewers.

-Using an old lid to secure the new lid does not work, the sizing is wrong and the threads to not fit.
-Putting the lid on dry not only doesn't work but is not sanitary.
-The only thing that works is to jury-rig a strap to hold down the lid or put a weight on it. It is very disappointing that they expect us to fix their poor design.

In short, Don't buy this unless you are willing to jury-rig a lid solution yourself.

I love these fermenters. I will never buy another carboy

Disappointing, nice easy to clean fermentor but you can't trust the seal of the universal lid. Had to place two wood splitting wedges on the lid for enough weight to hold it down. Poor design, hopefully a screw cap lid will return, I cannot trust the seal with the current universal lid.

I love the Big Mouth Bubbler and have multiples of them. Reason it gets a 3 out of 5 is the new "universal" lid. I have to weight it down or tape it to the bubbler for a lot of my brews to prevent it from blowing off. Wish they would have stuck with the older screw on lids.

The lid doesn't come close to sealing on my bottle. I ended up tying twine around the lid to get it to stay down. Did no one even test one of these bottles?

I have been brewing my own beer for 10+ years now and I was always using the plastic buckets for fermenting. Last year I brewed a Bourbon Barrel Porter that required a 6 month fermentation so I gave the Big Mouth Bubbler a try. It worked great for that one, so now I am using it on all my beers. The buckets were fine, but it's more fun to see through the glass at what is happening during the fermentation process. Since this vessel has such a big mouth it is also easy to clean. One drawback is that due to it's glass construction, this adds to the weight of it, but I still eel it is worth it.

I like the wide opening and larger capacity, no more bubbleovers!

Always wanted to go to glass, but hate that I can't get my hand into a carboy. This is the perfect solution and it fits perfectly into my lager chamber. Bought two, use one for primary and one for secondary or can lager both at the same time. High pressure brews seem to want to force the lid up. I just weigh it down.

Have had a lot of trouble getting the universal cap to seal correctly.

Easy to clean and perfect for dry hopping

Good quality-love the big mouth!

It would be a great item if it had a siphonless attachment.

I had one of the original big mouth bubbler that broke on me during cleaning but I loved the large opening and how easy it made cleaning so I ordered a new one. However, I was using it for primary fermentation and the lid started pushing out under pressure. Finally, put 2 three pound hand weights on it to keep the lid on. I see there is still threading so I may try the old screw on lid and I'll play with using bigger tubing on the air lock to see if that helps but I still believe a screw on lid is beneficial. All that said I still love how easy it is to clean.

While this fermenter is so much easier to clean and makes it easy to dry hop, there is a significant design flaw. They should have threaded the opening for a large screw on cap. This push-down model just doesn't give a good seal. If you don't correct for this, your batch will be ruined due to lack of fermentation. I have tried duct taping it down, bungee cords around it... you just shouldn't have be this creative and spend so much extra effort, while risking your beer. They need a BETTER SEAL!!!

Like other reviewers, my lid doesn't seal unless I tape it down. Also, the pattern inside is right where the foam hardens at the top of a 5 gallon batch. All of those pretty little bubble patterns take a lot of scrubbing. The previous version was better.

Great product!

I brought this to replace one I broke. The new one has a grey lid like the old one, not like the blue lid in the image. One, I have difficulty in getting the lid to seal. The manufacturer "broke in" (their words) the glass rim by grinding it down to about a 1/4" width. This seems to grip the seal too much and the leaks may be due to creases in the seal. If I torque it as tight as I can, it usually seals. I did not have this problem on the older one. Also, as the new one is taller and thinner, the harness I used for the old one does not fit and falls down. I will have to now modify the harness.One good note: it has gallon marking in the glass .

I never could get the lead to seal till I set weights on top of the lid. I also used more gaskets. The weights kept down pressure on the lid, allowing it to seal. Next time I am going to try a ratchet tie strap to keep the pressure on.

I've read some reviews on the Big Mouth Bubbler EVO 2 and was a little hesitant on ordering. Yesterday was the first opportunity to use it. It is definitely a LOT easier to clean than a glass carboy. I did not have any issues getting the lid to seal. A few words of suggestion to those thinking of purchasing: it is well worth the expense just from a cleaning perspective; and ease of dry hopping. If you take your time on seating the lid properly, there is no issue. I did have to crank down on the lid, perhaps a little more than should be necessary to get a good seal, but it sealed with only one gasket. I did not have any issues with cross-threading. Just take your time. Something like this, I always start by turning it counter-clockwise until you feel the lid set in the threads. Today, it's bubbling away! Given the opportunity, I'd trade in all of my carboys for more of these!

I've used glass and plastic carboys as well as buckets to ferment my beer and this unit has them all beat on several points. I love the big opening for ease of access for filling and for cleaning. I like the beefy feel of the glass. I like the idea that it is glass and will readily accept that risk in exchange for the durability and cleanliness available only from glass or stainless. _x000D__x000D_I do not care for the way the lid seals. It took an extra gasket coated with a thin layer of CIP Film to get mine to seal enough for bubbles to start in the airlock. I understand that others have experienced this issue as well. Would this stop me from buying another one? No. It is still a good product but needs a little more work to get that 5th star from me.

The first one I received, the threads on the glass were not big enough and the lid never tightened. I received my replacement BMB and use it with my current brew. The gaskets are way too thin to get a good seal. I added a second gasket and it sealed for a day. I�?���m about to add a third and see how that works. _x000D_Great concept; poor design._x000D_

As an owner and user of a 10 gallon stainless conical fermenter, I'm going to say this is the nicest fermenter you can buy for general use without breaking the bank. So superior to carboys and buckets it's not worth discussing. I use carboys still as secondaries, but as a primary, thanks but no thanks. I also used buckets in the past but I'm sick of shrinkwrapping the lids only to still have them leak and not show activity. I bought mine (2) in January of 15, they've been in pretty constant use since. They have made flawless beer. I have kept the boxes they came in and I do put those upside down over top of the thing any time it has beer in it. (light protection) I also keep them in a relatively light controlled area, but I don't have a totally dark place to put them unless I'm lagering in my freezer, thus the boxes. Cut a small hole for the airlock to poke through, then put foil over top for any other small amount of light that might get to your beer. _x000D__x000D_The glass is very beefy, this isn't your typical chintsy carboy. I dropped a 10" channellocks off my counter and hit BOTH of mine, day one, and they both laughed it off. I didn't think it was so funny. But they didn't mind. Don't try this at home._x000D__x000D_If you keep this in the dark, this is absolutely as functional as a stainless conical. I see complaints about the plastic ones not sealing, that is not an issue with these, not even a little. Another reviewer says the bung isn't a good fit, mine are perfect and if that's al the issue is, get a different number bung. _x000D__x000D_Cleaning is awesome. Visibility is 100%. The ground rim seals perfectly every time and the lid is gasketed. Especially for a beginner who wants to see the fermentation as it progresses, this is THE thing to have._x000D__x000D_Cons: You NEED a BrewHauler with these. They are bulky and not easy to handle. These need protection from light just like a white plastic bucket or carboy. Protect your beer!_x000D__x000D_I can't say enough about how much I like these. For the price, they are The fermenter bargain. Get two at least. Worth every penny and then some.

I've been brewing with 5 and 6 gallon glass carboys for about 8 years now and even done some open vat stouts with great success. I thought I would try something new. I'm very happy with two things now that I got my big mouth bubbler. The funnel fits without worry of toppling over from boil to primary. Really nice. Cleaning is a breeze that is also nice. I'm not totally happy with the air lock fit. It comes with a rubber plug that just barely fits. It fits, but.. it just doesn't feel secure. I would not put a beer that I was going to age in this for fear that the plug might pop off. As a primary where most of the mess occurs this makes life easier.