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Siphonless Big Mouth Bubbler® - Ported 6.5 Gallon Plastic Fermentor

$39.99

SKU# 41436

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The most helpful fermentor ever invented just got even better. Less effort. Better, clearer beer. Don’t just cut out the hassle of cleaning, cut out siphoning altogether! Porting this revolutionary fermentor makes transferring as easy as the turn of a valve. No extra equipment, no extra cleaning, just a sanitized fermentor.

Included: Siphonless Big Mouth Bubbler® - Ported 6.5 Gallon Plastic Fermentor, spigot, single-port universal lid.
Required but not included: Small Universal Stopper & airlock. Add to cart to view stoppers and airlocks.

Total:
$39.99

Availability: In stock

Siphonless Big Mouth Bubbler®

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Product Details

The Siphonless Big Mouth Bubbler® Plastic isn’t just easier to use. It’s better for your beer. Fight oxidation and contamination by keeping your fermentor closed for transfers. Never open the lid to insert an auto-siphon, just turn a valve and you’re set. Best of all, you’ll have clearer beer. Gently rack liquid from the spout into secondary without disturbing the trub.

Make your brew day easier and your beer better with the siphonless Big Mouth Bubbler®.

Includes:

  • Ported Big Mouth Bubbler® Plastic Fermentor
  • Spigot
  • Single Port Universal Lid

*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.

The optional Dual Port Lid allows for the use of a temperature controller probe. The ThermoStar Dual-Mode Digital Temperature Controller with optional 12" stainless probe ensures precise and repeatable fermentation temperatures!

Lid ports work with our Small Universal Stopper or a standard 6.5 rubber stopper.

Important Note: Do not fill any Plastic Big Mouth Bubbler® fermenters with very hot liquid - temp should not exceed 140 degrees Farenheit (60 celcius)

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

BIG MOUTH BUBBLER® Product Specifications:
Capacity:5 gallon6.5 gallon
SKU:U41950U41965
Weight:3.44
Height (w/lid, closed):22"23"
Diameter:10"11"
Mouth:5.5"5.5"
Fermentor Material:PETPET
Reviews
4.0 / 5.0
194 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
106
29
26
16
17
Absolutely awful product
The lid was impossible to keep sealed. Apparently the design for the lid changed recently, and it USED to be a screw on lid. This product would be five stars if it still had a screw on lid (the bubbler has threading for it still), but instead it has a lid that is akin to a standard bung. This was literally impossible to keep sealed. I tried duct tape, setting four heavy cans on top, and nearly glued it shut before dumping out the batch of amber ale I foolishly put in it, and promptly throwing the big mouth bubbler out in the trash. A waste of money on the product itself, and the batch of beer I put in it. Please save yourself the money, time, and frustration, and find something else!
February 27, 2017
Purchased
2 months ago
EXTREMELY DISAPPOINTED
I purchased four big mouth bubbler's on Northern Brewer's recent sale. I'd been debating back and forth between the BMB and another similar plastic fermenter. After doing a good bit of research, I pulled the trigger on the BMB based largely on the sale price. I was super excited to get them in and, based on many reviews I had read, was ready to make a couple easy modifications to the screw ring top in order to get a proper seal. Much to my dismay, the BMB's came in with a new and "improved" lid design. I'm glad the folks in R&D are aware there's a problem and are working to solve it, but I can't believe this new "improved" lid is any better than the old screw ring lid. The new lid, uses a silicone friction fit seal that fits between the outer lip of the lid and the inner lip of the bottle. This is a terrible design. There's no way, short of taping the lid down or weighting it down to get it to stay in place. The solution is easy, use a combination of the new and old lid systems...use the seal from the new lid in conjunction with the screw ring from the old lid (the threads are still on the bottle to screw on the lid) to hold the lid down...voila...perfect! Please, Northern Brewer, bring back some of the old screw rings for the lids so we can hold these new lids in place. I know you say it's ok, but I'm just not comfortable having the lid of my fermenter completely loose! Were it not for the lid issue, I'd give this product five stars...as it is, its only one. I also have to say, while I'm usually more than impressed with NB and their service, this lid issue really makes me question them...what kind of a company puts out an obviously flawed product with no solution for the consumer?
September 29, 2016
Response from Northern Brewer
Customer service is always happy to help with any issue. Some sanitizers, like star san, will call for air drying but many skip that. If you allow the item to dry, even by using a paper towel, it will not be as slippery and hold in place very well. A 2-3 pound weight on the lid would also help hold it down in place.
November 21, 2016
Northern Brewer N
Lid
Bring back the screw top. The push down lid is poor design and the idea of using tape, etc to hold the lid in place is a bad idea. You are asking the customer to fix your problem. Northern should provide the mason jar type screw down at no charge to make this right.
August 7, 2016
Response from Northern Brewer
We ask nothing of anyone, except that everyone have awesome beer. Sorry to hear you are experiencing difficulties, customer service is reaching out to you!
November 21, 2016
Northern Brewer N
poor seal
This is one worthless fermenter. It may work for a secondary where there isn't much gas buildup but it is totally worthless as a primary fermenter. I totally wasted my money. I contacted NB and they suggested inverting the silicone seal, which I did, but it wasn't much help. They said some people are putting a weight on the lid. Why do that? Maybe they should sell a brick with each one? A total waste of time that could easily be corrected with a screw type lid instead of the lid where you are supposed to jam it down.
October 6, 2016
Response from Northern Brewer
Customer service is always happy to help with any issue. Some sanitizers, like star san, will call for air drying but many skip that. If you allow the item to dry, even by using a paper towel, it will not be as slippery and hold in place very well. A 2-3 pound weight on the lid would also help hold it down in place.
November 21, 2016
Northern Brewer N
Great container, HORRIBLE lids
I have the old style with the screw on lids and they worked good for a while. The threaded cap would swell up and then not hold any more. I since bought these new style with the redesigned lids. They are awful. The cap is a friction fit and won't stay down. I've had to tape the caps on to make sure my beer is sealed and makes use of the airlock. I can't believe this wasn't noticed before sale.
Shouldn't have to tape the cap down.
Shouldn't have to tape the cap down.
February 21, 2017
Purchased
2 months ago
Bad design, poor manufacturing
The lid design is awful. It constantly pops out when you first put it in. I think it is from the release of gas from sanitizing solution bubbles popping/ beer aeration bubbles popping. So you have to constantly push it back down. Pushing it back down makes the pressure suck water in from your air lock making you need to refill it multiple times and risk contamination. Why not a screw on lid?

Also, the bottom of the INSIDE of the carboy has rough irregularities from the manufacturing process which make you have to clean it more thoroughly. Also this makes sanitizing it more dubious.

This product was supposed to make the process easier but is an even bigger pain to use. I bought one of these and a 5 gal and it was a total waste of money when I already had some perfectly good normal carboys.
January 16, 2017
Purchased
3 months ago
Awesome!!!
I used this my first time the other week for my all grain honey wheat. I threw in 3 expired packs on wyeast weihstephen yeast. The guys at my local hb shop hooked it up since they were 7 months past the mf date. I had a crazy fermentation with like 4 different airlock cleanings because of Krausen foam. When I transferred into secondary it was a breeze with this. I had a black ipa right next to this one with an auto siphon and they don't even compare. I had a huge pile of trub as well, I got a little of it in secondary but still less that my black ops with the auto siphon!
August 29, 2015
Ok I'm Convinced
Like any brewer it's hard to break some habits, but I'm glad I did. Clean up was cut in half. Fermentation was excellent solid Krausen for my Dead Ringer. Lasted longer than normal and transfer to secondary was simple and much cleaner.Next up Pliney the Younger then Pliney the Elder so that I can do a side by side taste test.Thank You for the veteran discount Curtis another seemless transaction
August 31, 2015
Love it, but with issues.
Love the BMB, makes racking much easier. However, with aggressive fermentation, the lid will "pop-off". this happens ALOT. I solve this issue by taping the top down.
February 22, 2017
Purchased
7 months ago
Best bang for the bug Ferm Vessel
Virtually no drawbacks that I can think of. This and the 5 gallon ported bubbler completely eliminated the need for a siphon in all of my post boil processes. Primary, secondary, bottling are all as easy as can be and the clean up of this compared to a conventional carboy is not even comparable. Best brewing purchase I've made yet.
June 8, 2015
Q&A
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 63 questions Browse 63 questions and 136 answers
I've seen different statements that this doesn't fit a 6.5G ported BMB. Northern has said No, owners say Yes. Any final response? Also, has anyone used with a fermwrap underneath the holder? It wraps around about 80% of the circumference.
A shopper on Jan 7, 2017
Siphonless Big Mouth Bubbler® - Ported 6.5 Gallon Plastic Fermentor
Siphonless Big Mouth Bubbler® - Ported 6.5 Gallon Plastic Fermentor
Plastic Big Mouth Bubbler® Harness
Plastic Big Mouth Bubbler® Harness
BEST ANSWER: Have the original bmb, the 5 and 6.5 gallon, the harness for each fits the proper size. I do not know if the newest bmb with spout would work.
Will Bubbler ever stop making the horrendous "universal" lids?
J O on Sep 7, 2016
BEST ANSWER: I had the same issue with the universal lids and tried allowing the star san on the lid to dry before putting it on the bubbler but had mixed results. I went to the local sporting goods store and purchased two 5-pound barbell plates for less than $4 each. One plate easily slips over my 3-piece airlock and securely seats the lid. Works 100% of the time and no more concerns about the lid pushing up and allowing the beer to become contaminated. It probably isn't what customer service would recommend but it works like a charm.
Are the ported 6.5 and 5 gallon big mouth bubblers made of plastic or glass?
M A on Dec 30, 2015
BEST ANSWER: Hi Mark,

We offer them in both versions:

http://www.northernbrewer.com/search/?q=siphonless+big+mouth

However, we are currently sold out of the glass version.

Cheers,

Charles
Does this hold a better seal than earlier BMB lids? I have a version 1 6.5 gal and I quit using it because the beers all tasted slightly off and I never saw action in blowoff so there had to be a leak. Switched back to old faithful glass bubbler and action like crazy.
E M on Feb 28, 2016
BEST ANSWER: This comes with the same lid that plastic big mouth bubblers use. When tested, the lids can seal, so if not sealing, there may be an issue with one. There is a universal lid which seals better. All my plastic ones seal well enough as needed. An imperfect seal can only result in off flavors if the beer sits in it for too long - if you transfer within a week or two to secondary, then you have no concerns.
Does the fermenter have print marks in liters or gallons?
A shopper on Feb 25, 2017
BEST ANSWER: There are technically no indicators other than the lines on the side, but they are marked at the gallon levels. There's 6 hash marks, one at each gallon level. Hope that helps!
Is it a ok idea to use the spigot to get a sample for a hydrometer reading?
A shopper on Jan 24, 2017
BEST ANSWER: I think so but I would use a refractometer because it only takes a few drops and it will save your beer esp. if you take multiple samples over time for gravity readings. I spray inside the spigot with star san before and after taking the sample. I also use a clean sanitized bristle brush to make sure the spigot is clean. I haven't had any problems. But I use a refractometer and not a hydrometer.
Would this be good for making red wines?
H E on Sep 5, 2016
BEST ANSWER: The BMB with spigot is well suited for the primary fermentation of a red or any wine, and would enable easy transfer to a secondary conditioning vessel with minimal loss while leaving sediment behind. As a secondary fermentation vessel it is less desirable than a smaller neck vessel as it has a much greater surface area interface with air, and thus exposure to oxygen
I have yet to purchase this item, but was wondering if I purchased the two port lid, could I use it with my Johnson temperature controller? How would I keep a tight seal around the probe wire running through the hole in the bung? Would I just need to use a thermowell?

Thanks in advance for help.
J O on Aug 21, 2016
BEST ANSWER: Sounds like you?re the kind of person that likes campground engineering? projects. Someone after my own heart ;-)
The port lid uses a #6.5 stopper. If you cut a solid stopper in half lengthwise, run the Johnson wire to your required depth, and then wrap some tape around the assembly to hold it together, that might work. Once you push it securely into the port, the pressure should seal the rubber stopper around the probe wire sufficiently. The Thermowell is only a $15-$30 solution depending on where you can find them.
What I do is simply tape my temp probe to the side of my fermentor, and then tape some foam insulation material over the probe. It?s not very sexy, but it works pretty darn well.
Can this be used as both a primary and secondary?
O L on Apr 13, 2016
BEST ANSWER: I have definitely used these for both primary and secondary fermentation, but the one concern about using a 6.5 secondary in general is the amount of head space left in the container (assuming you're brewing 5G batches). I haven't experienced any oxidation problems, but I have gone back to using my old 5-gallon glass carboy for secondary, when I do go to secondary. BTW, I am thinking about getting a 5-Gallon bubbler as a secondary fermenter.
Can I please get the dimensions of the Bubbler
J S on Jan 18, 2016
BEST ANSWER: Without spigot or airlock installed I get 9 1/2" diameter standing 21 1/2" high. WITH spigot and airlock (aka, 'in use') I get 12 1/2 " diameter and standing 26" high with the three-piece type of of airlock. Hope that helps.
Is there any reason to use an airlock with this for venting CO2 versus running some tubing through the stopper and venting the gas into a bucket of water?
David S on Sep 9, 2016
BEST ANSWER: I actually use both methods, depending on how I anticipate the rate of fermentation. For most of my typical beers, starting out with OG of 1.040 or so, I use a single hole stopper and an airlock. I like to brew an Imperial Stout, which always starts out strong, so I use a blow off tube and seal between the tubing and fermenter cover using about 1? vinyl tubing into a container of sanitizer. Sometimes, I still have a mess to clean up, but that is a fermentation issue, not a fermenter issue. The part I like the best with the optional top is the two ports so I can put the air lock or blow off tube in one port and a thermowell in the other through a 1 hole stopper. Lastly, I am really liking the spigot in the fermenter. I do always remove it between batches and clean it thoroughly, and when I use it again, I install it and check it with a complete fill to make sure it will not leak.

Jim Schultze
My second bubbler will not seal at the port. The seals appear to be fine, but I have a constant drip. Suggestions?
J A on Sep 2, 2016
BEST ANSWER: Clean the burrs off the drill hole. Then there should be two gaskets on it, one on each side of the fermenter wall itself. Fill with water and loosen the fittings up until it leaks a bit and then tighten it up just enough to stop the leak, if any. Over tightening is just as bad as under tightening. You warp the gaskets if you tighten too much.
Can I go straight to keg from primary fermentation with this? Or is it still recommended to transfer to bottling bucket first then to keg from there? Looking forward to streamlining the process however I can...thanks.
E D on Jun 22, 2016
BEST ANSWER: The whole point of the spigot is so you do not have to open the carboy to siphon to a bottling bucket or keg. This reduces exposure to nasty bugs that will spoil your beer.

I just elevate my carboys, connect a hose, and open the spigot to drain straight into my keg.

You shouldn't transfer your beer to a secondary container just to transfer it again to a keg. If you are doing this for clarity reasons, I recommend you transfer your beer straight from your primary to the keg and then chilling it (cold crash). The first pint you pout will be hazy (dump it) because all the trub particulate settled to the bottom during cold crashing.
Looks great and will probably order one. Maybe I'm not looking at this right, but I'm wondering about possible contamination of the spigot while my beer is fermenting. Thinking that the inside of the spigot is exposed to air for 2-3 weeks, do I need to clean up into the spigot right before I bottle?
MitchInNC on Jan 1, 2016
BEST ANSWER: Hello, I have used both the 5 gal and 6.5 gal with spigots and have not had a problem. I would imagine as long as you thoroughly clean the spigot before adding the beer (I soak it in SanStar) and not use it while fermenting (use a thief to sample), it should not get contaminated. The only time I use it is to transfer from the primary to secondary, and for bottling. If you are concerned with exposure to the air, I suppose that after you clean the spigot, you could wrap a plastic bag around it and secure with a rubber band. Just don't use it until you are ready to transfer. I recommend getting the bubbler. So much easier to clean than the carboy. Easy to see and the spigot makes tranfer so much easier than the siphon.
What size tubing is needed to attach to the port when transferring to secondary?
D R on Nov 28, 2015
BEST ANSWER: The tubing for this spigot is the [3/8" ID Siphon Hose](http://www.northernbrewer.com/3-8-id-siphon-hose).
Can you direct bottle at end of fermentation with this unit?
Michael L on Nov 11, 2015
BEST ANSWER: It depends on how you prime your beer for carbonation. If you use the sugar drops in each bottle, then you could rack directly from your fermenter. However, if you add priming sugar to the batch, you're going to stir up all of the spent yeast and grains that have collected below the spout mixing in the sugar. To me, the thing that I love about the Big Bubbler is that I can syphon off all my beer without disturbing the trub. If you're in secondary and have eliminated almost all of the trub in primary, this wouldn't be as big an issue.
Do I need to disassemble the spigot after each use for cleaning/sanitizing?
O K on Nov 1, 2015
BEST ANSWER: I have used mine on 5 brews so far with no isues. I am very c particular with my cleaning habits, so I don't worry to much about it. That being said, it is of small consequence to remove, clean, and replace if you would be more comfortable doing that. Those "Big Mouth" car boys give plenty of access for such chores!
Im getting ready to purchase the big mouth bubbler ported and want to buy new tubing for the spigot and Im not sure what size to use. thanks
B B on Oct 21, 2015
BEST ANSWER: The one you said to get worked fine
Can someone explain why this is better than a bucket? Beside the obvious visual appeal of seeing the fermentation in action...
L M on Oct 2, 2015
BEST ANSWER: A bucket is opaque

so you can;t see the product. The opening is also wider

not by much

but still. That is the main benefit but does prove useful information. I would also consider the seal on a BMB to be better than a 6.5 bucket.
Will this work for a wine kit? Is it big enough?
J E on Oct 1, 2015
BEST ANSWER: This fermentor would work great for a primary for a 6 gallon wine kit. For a secondary

you would want a 6 gallon carboy. We use the 6.5 BMB as a primary in our wine equipment kit

which was developed with the wine expert Tim Vandergrift.
I got a Brett infection in my latest BMB brew. Is this thing salvageable or should it become my permanent wild beer tank? What's the best way to sanitize it after infection? Can I use bleach on it without future chlorophenol issues?
Shelby H on Aug 15, 2016
BEST ANSWER: The fermenter is not lost but will require extensive cleaning and sanitation to salvage. I recommend a long soak with a PBW solution then fill the fermenter with a Star San solution and soak for at least a few hours, making sure to cover the entire surface of the fermenter. This should kill off any remaining Brett. I would avoid using bleach.
Is plastic ok for a secondary fermentor?
Kent A on Jul 30, 2016
BEST ANSWER: I only use mine for primary fermentation.
What are the dimensions for the 6.5gal size?
J A on Jul 20, 2016
BEST ANSWER: The 6.5 gallon fermentor has a height of 21 3/4 inches, including the original screw cap and port lid insert. If you are using the newer universal lid, the height would be reduced to 21 3/8 inches. The circumference is 35 inches, and the diameter is 10 3/4 inches. The spigot will protrude 1 1/2 inches from the side. Check out this link from the manufacturer http://bigmouthbubbler.com/design/
What size spigot does the BMB use?
David C on Jul 16, 2016
BEST ANSWER: It's the standard spigot used on the bottling buckets, SKU 40794. I uses a 1" drilled hole, and can be used with 5/16" or 3/8" siphon tubing. -Mike W, Northern Brewer
has anyone used the siphonless wide mouth plastic bubbler for brewing kombucha? Concerned about the acidity of booch and the plastic interactions. thank you
H O on Jul 12, 2016
BEST ANSWER: These fermenters are made of PET plastic and will not leach anything into the kombucha. They are regularly used by people to make it.
Is there any reason this should not be used for white wine?
R Z on Jul 1, 2016
BEST ANSWER: No reason, just cover it up during fermentation.....
How tall is this with the airlock and also what is the with?
M E on Jun 27, 2016
BEST ANSWER: With the cork and airlock mine is right under 26? and it?s 11? wide.
Any ideas on how to keep the lid from popping off? Right now I'm using painter's tape. Is there a product (or an idea) more appropriate?
David C on Jun 26, 2016
BEST ANSWER: If the lid starts popping off during the active parts of fermentation, you can just place a weight on the lid. If it pops up slightly, but the gasket is still making contact with the sides, the fermentor should still stay sealed.
Is it BPA free?
A L on Jun 18, 2016
BEST ANSWER: The short answer is yes it is PBA free. The plastics that contain PBA?s are a polycarbonate plastic. The Big Mouth Bubbler is made from a polyethylene PET plastic. Check out this link from the manufacturer http://bigmouthbubbler.com/design/
Will the Better Bottle racking arm adapter and spigot fit on this ported carboy?
S B on May 5, 2016
BEST ANSWER: I do not believe so. The hole drilled for the spigot on this unit is 1" in diameter and I do not believe that is the same size for the better bottle...but if its the same hole size or works on that size, then it would. Cheers.

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