Catalyst Fermenter

The Catalyst Fermentation System is a revolutionary piece of home brewing equipment. The Catalyst fermenter is an industry-leading conical fermenter that we designed to simplify the fermentation process, making it easier than ever to brew your own amazing craft beer at home.

The Catalyst Fermentation System


The Catalyst is an elegant piece of brewing equipment through which we’ve simplified the process of fermentation, making it easier than ever to brew great beer at home.

Shop Now

The Catalyst Fermenter's Key Features

Conical tank with 45˚angle
Includes a proprietary 3” butterfly valve. The largest in the industry
93% more scratch-resistant than other plastic fermenters
All steps in one vessel: Primary, Secondary, Harvest Yeast, and Bottling
6.5 gallon capacity
Strong and durable stand, designed with I-Beam, and honeycomb structure
Our Trub TrapTM is compatible with any wide mouth jar
Dishwasher Safe

Catalyst Fermenter

Industry-Leading Materials

The Catalyst Fermenter's tank is made from Tritan®, a medical-grade, BPA-free, polymer. This food-safe polymer is the highest quality used in a conical fermenter, providing the clarity of glass with the durability and convenience of plastic. This material acts as an excellent barrier against oxygen, making our tank 93% more scratch-resistant than other plastic fermenters. It is dishwasher safe and withstands temperatures of up to 230º Fahrenheit.

The Trub Trap consists of a 3” butterfly valve and is compatible with any wide mouth mason jar. Easily remove kettle trub and fermentation trub, pitch a yeast starter, harvest yeast, and bottle, without disturbing, or oxidizing that precious beer.

What's Inside The Catalyst Fermenter

  • 6.5 Gallon Tank with Lid
  • Stand (Base, 2 Legs, 2 Support Beams, 8 Screws)
  • 3” Proprietary Butterfly Valve
  • Bottling Attachment
  • Transfer Tubing
  • Tubing Clamp
  • Rubber Stopper
  • 16 Oz. Wide Mouth Mason Jar
  • Allen Wrench

How To Use Catalyst Fermenter - Timelapse

Kettle Trub (Pre-Fermentation)
Use a 24 oz. mason jar to catch trub, hops and other pre-fermentation sediment, then discard it by closing the valve and unscrewing the mason jar.
Yeast Starter & Primary
Use a 16 oz. mason jar as a yeast starter, attach and open the valve to pitch. Leave the jar attached to collect all of the primary fermentation trub.
Secondary & Yeast Harvesting
Use an 8 oz. mason jar during secondary to catch all of your viable yeast and refrigerate for later use.
Our bottling attachment makes bottling easier than ever. Just screw on the included transfer funnel, attach it to the transfer tubing and open the valve. Let gravity do all the work, down to the last, perfectly clear bottle of beer.

Our Guide To Brewing & Fermenting With The Catalyst Fermenter

A step by step guide to brewing, fermenting, and bottling your beer.