Big Mouth Bubbler 6.5 Gallon Plastic Fermenter with Harness

  • Big Mouth Bubbler 6.5 Gallon Plastic Fermenter with Harness
Big Mouth Bubbler 6.5 Gallon Plastic Fermenter with Harness Big Mouth Bubbler 6.5 Gallon Plastic Fermenter

Big Mouth Bubbler 6.5 Gallon Plastic Fermenter with Harness

SKU 42902



Product Details

Purpose-designed from head to toe. Constructed from food-grade PET, the revolutionary 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. Featuring gallon graduation marks for instant volume measurements. Its smaller footprint preserves precious brew cave space and allows for convenient storage inside a standard brewing bucket. And, of course, its revolutionary wide mouth eliminates glugging and enables hands-on cleaning for a faster, cleaner clean. Finally, get your hands wet.

The new Big Mouth Universal Lid (included) fits all Big Mouth Bubbler® Fermentors, and has ribbed silicone rings ensure a completely air-tight seal. Upgrade to a dual-port lid plate for continuous thermowell monitoring in one port to sustain constant ideal fermentation temperatures and take gravity readings without ever removing the lid. Earth-conscious design.

We have thoroughly planned out every last feature of this innovative product, right down to it’s physical construction. After untold amounts of research into the properties of PET plastic, we fanatically chose to make the Big Mouth Bubbler™ with as little plastic as possible while still maintaining a high degree of structural integrity and brute strength. What does this all mean? It means that the impact to our planet Earth is as minimal as possible. We call this a win-win situation. Check out the Plastic Big Mouth Bubbler™ for yourself. You will never go back to a traditional style carboy again.

Now Including our Universal Harness for lifting, transporting and ensuring your Big Mouth Bubbler lid stays in place during even the most intense fermentations.

Additional Information



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

You will also need a Small Universal Carboy Bung (not Included) - drilled or solid. The Carboy Dryer is compatible with the Big Mouth Bubbler® when used in an inverted position.

BIG MOUTH BUBBLER® Product Specifications:

Capacity: 5 gallon 6.5 gallon
SKU: 42905
Weight: 3.4 4
Height (w/lid, closed): 22" 23"
Diameter: 10" 11"
Mouth: 5.5" 5.5"
Fermentor Material: PET PET

Customer Reviews

Based on 24 reviews
Big Mouth Bubler

Love most everything about this fermenter except for the fact that the lid will not stay sealed during active fermentation. This seems to be a well documented issue with this product and surprised it has not been dealt with yet.At this point I am exploring a few online clamp type ideas to remedy this problem

Russell H.

Very happy. Fast and very helpful!

Best in mouth bubbler

Wouldn’t use anything else.

Daryl H.
Big Mouth Bubbler with harness

This is my 4th Bubbler but this is the first with this particular harness. It secures the lid from blowing off. In the past I’ve had to use large rubber bands to secure the lid with varying success. This has improved this product immensely.

Jim B.
Best primary fermenter around!

I will never ferment in a bucket again! This thing is easy to use, clean and seal up. It’s totally worth it. Just be careful to pay attention to the liquid temp you put into it because it will distort if your liquid is too hot.