Big Mouth Bubbler® - 6.5 Gallon Plastic Fermentor

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Big Mouth Bubbler® Plastic is a virtually indestructible fermentor, equipped with 3" thick anti-flex ribs, a punted bottom and decreased base diameter for extreme strength and durability. Its smaller footprint preserves precious brew cave space and allows for convenient storage inside a standard brewing bucket.

Included: Big Mouth Bubbler® - 6.5 Gallon Plastic Fermentor, single-port universal lid.

Required: Small Universal Stopper & airlock. Configure options above.

Superior to a carboy, Big Mouth Bubbler® Plastic prevents off-flavors by enabling you to keep the lid on during testing and transfer, avoiding exposure to oxygen with standard-sized ports that can accommodate most fermentation-monitoring equipment.

The punted bottom promotes crystal-clear beer by efficiently settling out yeast from finished fermentations. Graduation marks make volume measurement instant and effortless. And, of course, its revolutionary wide mouth eliminates the nightmare of cleaning and sanitizing by giving you direct hands-on access to attack crusted krausen, while simultaneously offering unlimited flexibility in dry-hopping and flavor additions.

*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.

Lid port works with our Small Universal Stopper or a standard 6.5 rubber stopper.

Additional information

SKU

41965

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

BIG MOUTH BUBBLER® Product Specifications:

Capacity: 5 gallon 6.5 gallon
SKU: 41950 41965
Weight: 3.4 4
Height (w/lid, closed): 22" 23"
Diameter: 10" 11"
Mouth: 5.5" 5.5"
Fermentor Material: PET PET

Note: We recommend a soft cloth for cleaning the inside. Standard carboy brushes will scratch plastic fermenters leaving places for grime to hide. A warm cleaning solution will suffice. Do not use hot water on plastic fermenters of any sort. The Big Mouth Bubbler® is compatible with a standard carboy dryer when the dryer is used inverted.

*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.

Customer Reviews

Based on 11 reviews
73%
(8)
27%
(3)
0%
(0)
0%
(0)
0%
(0)
J
Jennifer S.
Big Mouth Bubbler

I have purchased a number of big mouth bubblers for my brewing. They make clean up so much easier and ferment just as well as the carboys with out a lot of finagling to get them clean, sanitized, and prepped for the next batch.

H
Hunter
Big Mouth

Perfect for a 5 gallon batch using whole fruit. Love the clear plastic so you can see the brew vs the opacity of a brew bucket. Only minor issue is the grommeted hole feels slightly too large for the recommended size bung.

k
kris j.
In the barrel now. Call back in 3 months

Not impressed with the big mouth bubbler.

G
Gary M.
Light and Easy to Clean

I have both a 6.5 and 5 gal bubbler and universal carrying straps for each. They do exactly what I need them to do. I bought them mainly because they are so much lighter than glass and not as fragile. In my setup I need to move the brew a couple of times and the reduction in weight is very welcome. The carrying straps were a little clunky in the beginning but I got used to them quickly. Plus, they help keep the lid on during fermentation.
Carboys really aren't that difficult to clean but cleaning the BMB is a snap - just reach in there and swab it out. Nice!
As with most everything, there is room for improvement. First, the lids are not tight enough for my liking. Cinching them down with the carrying straps is doable but there is definitely room for improvement. Second, the stoppers recommended by NB slip right through the hole in the bubbler lid. If I recall correctly, they are size 6.5. I moved up to size 7 and they work fine. Bottom line, I'm very happy with the bubblers. Address these two issues and they would be five stars plus.

M
Michael B.
Big mouth bubbler

The large mouth allows for east cleaning, stirring, and additional items.

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Big Mouth Bubbler® - 6.5 Gallon Plastic Fermentor

Big Mouth Bubbler® - 6.5 Gallon Plastic Fermentor

Customer Reviews

Based on 11 reviews
73%
(8)
27%
(3)
0%
(0)
0%
(0)
0%
(0)
J
Jennifer S.
Big Mouth Bubbler

I have purchased a number of big mouth bubblers for my brewing. They make clean up so much easier and ferment just as well as the carboys with out a lot of finagling to get them clean, sanitized, and prepped for the next batch.

H
Hunter
Big Mouth

Perfect for a 5 gallon batch using whole fruit. Love the clear plastic so you can see the brew vs the opacity of a brew bucket. Only minor issue is the grommeted hole feels slightly too large for the recommended size bung.

k
kris j.
In the barrel now. Call back in 3 months

Not impressed with the big mouth bubbler.

G
Gary M.
Light and Easy to Clean

I have both a 6.5 and 5 gal bubbler and universal carrying straps for each. They do exactly what I need them to do. I bought them mainly because they are so much lighter than glass and not as fragile. In my setup I need to move the brew a couple of times and the reduction in weight is very welcome. The carrying straps were a little clunky in the beginning but I got used to them quickly. Plus, they help keep the lid on during fermentation.
Carboys really aren't that difficult to clean but cleaning the BMB is a snap - just reach in there and swab it out. Nice!
As with most everything, there is room for improvement. First, the lids are not tight enough for my liking. Cinching them down with the carrying straps is doable but there is definitely room for improvement. Second, the stoppers recommended by NB slip right through the hole in the bubbler lid. If I recall correctly, they are size 6.5. I moved up to size 7 and they work fine. Bottom line, I'm very happy with the bubblers. Address these two issues and they would be five stars plus.

M
Michael B.
Big mouth bubbler

The large mouth allows for east cleaning, stirring, and additional items.