Big Mouth Bubbler® EVO 2 - Siphonless 5 Gallon Glass Fermenter with Harness

Item Number: 42901

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The newest innovation in glass carboys, our Big Mouth Bubbler® EVO 2 Glass Fermenter now features siphonless transfer!

Gone are the days of fumbling with hard-to-sanitize racking canes. Recently re-engineered with the help of world-class Polish master glassmakers to ensure sturdy, solid, superior craftsmanship. With graduated volume markings and our Big Mouth Bubbler® Universal Lid, this is the ultimate solution to your fermentation and transfer headaches. Problem solved. 

The new Big Mouth Bubbler® Universal Lid fits all Big Mouth Bubbler® Fermenters. 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. Removable ribbed silicone ring ensures 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 fermenter.

Fight oxidation and contamination by keeping your fermenter 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 or bottle straight from primary or secondary without disturbing the trub. Make your brew day easier and your beer better with the siphonless Big Mouth Bubbler® EVO 2. 

Now Includes the Big Mouth Bubbler® carrying harness for lifting, transporting and ensuring your Big Mouth Bubbler lid stays firmly in place during even the most intense fermentations.


  • Ported Big Mouth Bubbler® EVO2 5-Gallon Glass Fermentor
  • Spigot
  • New Big Mouth Bubbler® Universal Lid
  • Carrying Harness for Big Mouth Bubblers®

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

5 gallon fermenters are best for the secondary conditioning stage of beer fermentation. The smaller size eliminates extra airspace in the fermenter reducing the chances of oxidation which can stale the beer prematurely. 

Also available as a  6.5-gallon primary fermentor

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. 

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 the adhesive FermagraF° LCD thermometer than any other glass fermenter! The most obsessively engineered glass fermenter ever created. We are proud and excited to introduce the new and improved Big Mouth Bubbler® EVO 2.

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