Big Mouth Bubbler® EVO 2 - 6.5 Gallon Glass Fermentor

$39.99

SKU# 41326

Standard Shipping Rates Apply to this product

The fermentor that started it all, reinvented again! We’ve taken the revolutionary Big Mouth Bubbler® glass and re-engineered it with the help of world-class Polish master glassmakers to ensure sturdy, solid, superior craftsmanship.


Extra-thick glass eliminates oxygen permeation and keeps your brew safe. Banish bugs and bacteria with perfectly air-tight seals from a carefully ground, completely smooth and obsessively flat neck top.


In the evolution of Big Mouth Bubbler®, we’ve added some perks! Instantly measure volume with gallon graduation marks. Easier transfer of clear beer with a taller, narrower body while ensuring less liquid is left behind.


Please note: This item does not qualify for flat rate shipping.

Total:

Regular Price: $59.99

Special Price $39.99

Availability: In stock

Big Mouth Bubbler® EVO 2 - 6.5 Gallon Glass Fermentor - Now with the Universal Lid

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  • Big Mouth Bubbler® EVO 2 - 6.5 Gallon Glass Fermentor - Now with the Universal Lid
  • Big Mouth Bubbler® Universal Lid
Product Details

Bid your funnel and siphon sayonara! Pour cooled wort directly from your kettle into the Big Mouth Bubbler® for instant transfers. Pitch yeast without it running down the sides of your fermentor. Easily add flavorings to secondary, and then just as easily remove them!

Gallon graduation markings help ensure precise measurement of fermenter volume.

Last but not least, you asked and we listened—more space for adhesive fermometers than any other glass fermentor! The most obsessively engineered glass fermentor ever created—we are proud and excited to introduce the new and improved Big Mouth Bubbler® EVO 2.

Note: We still strongly recommend the Big Mouth Bubbler® carrying harness.

Each Big Mouth Bubbler® Includes:

  • Big Mouth Bubbler® Glass Fermentor, Universal Lid*
  • Big Mouth Bubbler® Microfiber Cleaning Cloth

*The new Big Mouth Universal Lid (included) fits all Big Mouth Bubbler® Fermentors. The Big Mouth Bubbler® Universal Lid is just like a traditional carboy bung, only bigger! Just as easy to sanitize and set in place too. Ribbed silicone rings ensure a positive seal to keep out pests, while the non-threaded design allows the lid to move preventing an out-of-control fermentation from dangerously pressurizing your fermentor.

You will also need a Small Universal Carboy Bung - drilled or solid.
Product SKU41325 (5 Gal.)41326 (6.5 Gal.)
Weight13.5 lbs.16.5 lbs.
Height (w/ lid, closed)18"17.5"
Diameter10.25"12"
Mouth Diameter5.25"5.55"

Caution: Big Mouth Bubbler® is a large hand-formed glass item that can be easily damaged if not used with proper care and handling. It may have variations in shape and thickness, and will show the normal bubbling characteristics of hand-formed glass. Extreme changes in temperature or sudden contact with hard surfaces may cause glass to crack. Handle with care–we strongly recommend using the Big Mouth Bubbler® carrying harness for increased safety and ease of handling.

*Pro Tip: Save your box and use it as a cover for your fermenter!

6.5 Gallon fermenters are perfect for the primary stage of beer or wine fermentation. The extra head space allows for the production of krausen on a 5 gallon batch of beer. Also available as a 5-gallon secondary fermentor.
Reviews
3.7 / 5.0
155 Reviews
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Worse Fermentor Ever
This is by far the worse Fermentor I have ever used. I had the old style big mouth Fermentor (screw on top) and it worked great. Needed another Fermentor and when they claim it is better I was happy to buy one. But it most certainly is not better. The top's seal is awful. I had to weigh it down with weights to keep it from coming off. DON'T BUY THIS! I had bought a 5 gallon one too which will be going back because I haven't opened it. It is the first time I have been disappointed in Northern Brewer. They should stop selling this junk though.
August 22, 2016
Response from Northern Brewer
Thanks for the feedback and sorry that the bubbler didn't work out for you. We've found that making sure the lid is dry and sometimes flipping the gasket around can help them stay in place a bit better. Please let us know if you need anything from us.
November 21, 2016
Northern Brewer N
Easy fix for new lid!
I too was very frustrated with the lid on my Bubbler. It kept constantly creeping out. I figured out an easy and inexpensive fix. I got 2 x 7 inch hose clamps from Home Depot for $1.98 each. Cut one into a strip of about 10.5", then bent that so it would go over the lid. Clamped it into place with the other. You can find a picutre here : https://goo.gl/photos/eSith8Uym4VYTc9f8It would work with a center hole lid just fine. My first time using this my primary fermentation was out-gassing like crazy and everything stayed nice and snug.
June 25, 2016
Great!
Very solid and easy to use. Lot's of room for krausen. Make sure you get the screw on cap if you use a the blowoff tube as it can pull the push-on top off.
December 29, 2015
Big mouth bubbler
We're using the bmb for a plum mead that has lots of plums. It's really excellent compared to an ordinary carboy. I like the fact that there are gallon indicators on the side of the bmb.
March 23, 2016
Big Mouth Bubbler EVO 2 6.5 Gal Glass Fermenter
For me I think it's going to be too heavy to brew 5 gals. So I've decided to do 3 gal batches. Age has decreased my quantity drinking,so 3 gal kegs will be my route. I would have bought plastic had I realized the weight and difficulty of holding a large wet glass container. The harness I bought will definitely be used.
June 11, 2016
Awesome all the way around
This is the best, it is easy to clean, easy to handle and at a great price. Wish the made 12 gallon ones.
October 27, 2015
Recommended
I love my Big Mouth Bubbler. No more hand cramps from swishing a carboy brush around a narrow necked carboy to clean it out. More Peace of mind that you cleaned your carboy perfectly. Highly recommended.
May 3, 2016
Great
I now have two of these. They are the best. Easy to use. Easy to clean
October 27, 2015
Works well as a primary!
It seems to be built well with thick glass walls and is shorter then the plastic version. I didn't have any issues with the lid but I am using it just as my primary. My first fermentation in it required the blow off tube because it was a very active fermentation. I did not have the straps for the first time but I think I will be investing in them before my next brew. I was really easy to clean and I love the bigger opening.
September 3, 2015
Great Product
I am very happy with my BMB Evo 2. It is really nice being able to see the fermentation going on. Since this model is glass, I have greater peace of mind knowing that there isn't anything growing in any scratches like you would have with a plastic or PET fermentor. I do wish the lid stayed in a little better.
May 30, 2016
Q&A
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Browse 19 questions Browse 19 questions and 35 answers
If the Universal lid does not have a solid seal (which seems to be a common issue from reading reviews), are there any other options?
M I on Feb 4, 2016
BEST ANSWER: Hi Mikey,

There are other options. The main issue seems to be not so much with the new lids as with some of the the older Evo2's. As far as I can tell, it seems like there can be some variance in the inner diameter of the opening. BMB did straighten it out, so all the ones we currently sell should fit just fine. But if you get it and it doesn't seal adequately, we could talk about replacing the carboy or refunding you for the lid.

Cheers!

Charles
Is glass EVO 2 safe for pulling a vacuum on to degas wine? I like to use a vacuum pump to degas wine kits. Don't want to order one of these if it's going to implode and spew wine all over my kitchen. Thanks!
U F on Jul 30, 2016
BEST ANSWER: Implosion would not be a problem in my opinion. But the lid is. I found the Big Mouth lid would not stay on during beer fermentation, even when vented with a hose. The foam forced it off the bottle. I had to weigh it down with bricks for it to stay in place.
I'm interested in purchasing one of these as it's the only glass fermenter compatible with the Brew Jacket. There seem to have been a lot of complaints about the lid. Has this issue been fixed, or would I be rolling the dice purchasing one of these?
Josh H on Jul 11, 2016
BEST ANSWER: Most folks have had good luck with these, but some have had issues getting the lid to stay where they want it. But the lid for this does not have to stay "all the way down" for it to be functioning correctly. Some have had good luck just inverting the silicone seal-ring on the new lid to have it hold in place more securely. These are really nice fermenters, the lid is not a problem in the vast majority of cases. -Mike W, Northern Brewer
Do they have drying racks for these like the old style carboys have?
K E on Dec 29, 2015
BEST ANSWER: I have no clue. But with the open mouth you can get your hand in to dry it out with the supplied micro fiber towel
I recently received two of these bubblers through a promotion and was really excited. According to the photos on your site, it shows the plastic 6.5's coming with the old style lid. Naturally after seeing online reviews, I also purchased two universal lids so that I could use the old lids with the new ones as one unit . Sadly I received no old lids like in the photos and got 4 universals instead. Customer service refunded me for two lids and assured me the universals will work without any issues. Well, we have issues. After a few brews, the universal lid pops up during fermentation and leaks. And yes I have tried installing them dry. Is the any way to get the old lids anywhere??? Also what is northern brewer doing about this for us consumers who spend our hard earned money on your products? So far I'm concerned about my brew going bad, and that's not just a cheap batch to say "oh well" on. Please help!
B H on May 15, 2016
BEST ANSWER: I have one of the glass EVO 2 Big Mouth Bubbler with the old lid and one with the new universal lid. I much prefer the old lid. I recognize that they received a number of complaints from people who didn't understand how to tighten (break in) the old style lid and had gas leaks but having an option to buy the old style would be wonderful.
Can these be used for no chill? Or would the temperature change Crack them?
D O on Apr 18, 2016
BEST ANSWER: J,

Thanks for your question. The temperature change would indeed crack the glass.

Cheers!
Is there anyway to keep new lid down without duct tape. I like the bigmouth design. New lid pops up without pressure. I brewed northy12 and secured with tape to not loose it.
matt p. on Mar 7, 2016
BEST ANSWER: There are options for editing an original lid to act as a screw down to secure it, basically cutting out the middle of it. Usually if you allow it to dry, give the lid a twist to seat it, it should hold. Be sure to not over fill and that it is not clogging and actual yeast foam is pushing the lid out. Consider contacting customer service about the quality of your product received. A weight will also hold it down if experiencing this issue.
When will the new lid be available as a separate item to purchase for those of us who bought the poorly designed predecessor?
A M on Oct 23, 2015
BEST ANSWER: If having issues with an old lid we'd be happy to replace it. If placing a new order we would be happy to throw it in with the same shipment. It is available online now as well.
Is the bung hole large enough to accomodate a raking cane?
S T on Oct 23, 2015
BEST ANSWER: No. And I was quite disappointed to find that out. It seemed a missed opportunity to make the lid with a bung, but make it too small to be useful except for the airlock.
Are there any plans to port the Glass Big mouth bubbler like the plastic ones?
J B on Oct 7, 2015
BEST ANSWER: Right now I'm not aware of any plans to offer a product like that

but new products are handled by a different department and we here in Customer Service get little to no heads up about these matters. Cheers. -Tyler
Is it possible to buy one of these with the screw-on type lid?
K E on Aug 24, 2016
BEST ANSWER: Hi Keith,

Thanks for contacting us! We kept stock of the old lids at first, but we don't have any left, and they are no longer being manufactured.
Will there be a screw on lid available? The universal lids do no fit properly and come off easy which makes transporting difficult. There are threads on the container so a screw lid should be helpful. Thanks
J A on Apr 28, 2016
BEST ANSWER: Thanks for the suggestion. A screw lid used to be standard, but variations in hand formed glass lead to poor seals. We'll consider this feedback about being able to transport the fermentor for the future. Cheers!
If there was a way to put a spigot this would be awesome. I like the spigot from the Big mouth plastic bubbler. It is easier all the way around and do not need to siphon. Process steps get cut down and so do cleaning.
A P on Mar 25, 2016
BEST ANSWER: We do offer a siphonless version of this fermentor. Item number 41846
I read the reviews. Still bought new style. I thought the blow off tube and high gravity brew might have been culpret. Found no bubble and active ferment.spray sanitizer on big blow off tube bought with new glass carboy.found it to bubble. Lid still pops up. Changed airlocks. No matter what I do lid pops up after seconds. I don't want to remove it. Is this common? Is there fix besides duct tape which it even peels up? Will old screw lid go over new style to thread it secure? I really don't wanna ruin any brew!
matt p. on Mar 15, 2016
BEST ANSWER: When inserting the lid, ensure that the interior of the Bubbler's mouth is dry; this will increase friction and provide a better seal. The lid should not pop up, but if it does, this is unlikely to negatively impact your beer. The old screw lid will not fit perfectly over the new universal lid without modification.
Based on a Northern Brewer Youtube video, on video it look like the glass fermenter is a screw top... are the pics on website outdated? or did I see it wrong? is the glass fermenter a screw on?
G I on Feb 16, 2016
BEST ANSWER: Hello,

Thank you for choosing Northern Brewer! The bubbler in the video is outdated. The new improved lid is not a screw on lid.
I received both the screw top and universal lids in my box. The threads are definitely a problem so I thought I would try just fitting on the universal which I have two of. I could not get thediet of them to stay on tight. They just pop up with even the slightest pressure. Will this get better when I put it on with an airlock on it? Or how have others had luck? Thanks.
T J on Dec 30, 2015
BEST ANSWER: The universal lids have a tendency to pop up under pressure. We recommend taping them down or gently strapping them down to prevent this. However, even if you were not to further secure the lids, the gas exchange will not severely impact the quality of your brew.
I have one of these with the old crappy lid that does not seal. can I buy just this new lid and will it fit. I just bought the old on around a month or so ago and feel like I got took.
A C on Oct 24, 2015
BEST ANSWER: Hi Jason

Do you have the order number (or numbers) that you purchased your big mouths under

I went through your 5 or 6 most recent orders and I couldn't find any big mouths although I may have missed it. Please contact us either by email at brewmaster@northernbrewer.com or by telephone at 1-800-681-2739 option 1.

I should be able to set you up with a lid or two.
Has the issue with the lid been fixed? Most people don't seem to be happy with the lid closing properly.
V O on Sep 6, 2015
BEST ANSWER: The lids on here are broken in with a strap wrench and lubricant to ensure the threads get perfect contact with the hand formed glass and ensures a perfect seal. Any with issue resulting in threading issue has been addressed so any issues getting a seal can be addressed and handled by customer service

though you should not run into any issue.
What is the circumference?
A shopper on Nov 30, 2016

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