What is The Catalyst Fermentation System used for?

The Catalyst is a conical fermentation system designed for fermenting, clarifying, yeast harvesting, and bottling beer and other fermented beverages.

What material is the fermenter made from?

The tank is made from BPA-free Tritan®, a durable, food-safe polymer with glass-like clarity and high scratch resistance.

Can I harvest yeast with The Catalyst?

Yes. The Trub Trap™ system allows brewers to collect and harvest yeast using compatible wide-mouth mason jars.

Does The Catalyst reduce oxygen exposure?

Yes. Its single-vessel workflow helps minimize unnecessary transfers and reduces oxygen exposure during fermentation and bottling.

Is The Catalyst dishwasher safe?

Yes. The Tritan® fermenter tank is dishwasher safe.

What batch size does The Catalyst support?

The Catalyst is designed for fermentation batches up to 6.5 gallons.

The Catalyst Fermentation System

Name: The Catalyst Fermentation System
Brand: Craft a Brew
SKU: BE-CAT
Price: 229.99 USD
Availability: OutOfStock
Rating: 4.59 (256 reviews)

$229.99

This is a Sample Product Title

~~Was $200.00~~

Now $100.00

The Catalyst Fermentation System combines fermentation, trub collection, yeast harvesting, and bottling into one streamlined vessel. Its conical design allows sediment to naturally settle into the Trub Trap™ system for easier removal without disturbing finished beer.

The oversized butterfly valve provides smooth flow control for dumping trub, collecting yeast, and transferring beer while minimizing oxygen exposure throughout the brewing process.

Unlike traditional buckets or glass carboys, Tritan® construction offers excellent clarity with enhanced durability and scratch resistance for repeated brewing use.

Kettle Trub Collection

Attach a mason jar to collect hop matter and pre-fermentation trub directly after transferring wort into the fermenter.

Primary Fermentation

Use the Trub Trap™ system to collect sediment and fermentation trub while keeping beer undisturbed.

Secondary & Yeast Harvesting

Swap mason jars to collect reusable yeast for future batches.

Bottling

Attach the included bottling attachment and transfer tubing to bottle directly from the fermenter using gravity-fed flow.

What's Inside the The Catalyst Fermentation System

6.5 Gallon Tritan® Tank with Lid
Fermenter 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

Key Features Of The Catalyst Fermentation System

Conical tank with 45˚angle

Includes a proprietary 3” butterfly valve. The largest in the industry

Silicone gasket with multi-surface contact to ensure a perfect seal

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 Trap™ is compatible with any wide mouth jar

Dishwasher Safe

How To Use The Catalyst Fermentation System

Innovative Materials

The Catalyst Fermentation System's tank is made from Tritan®, a medical-grade, BPA-free, polymer. This food-safe polymer is the highest quality used in a 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, so you can remove kettle trub and fermentation trub, pitch a yeast starter, harvest yeast, and bottle without disturbing, or oxidizing that precious beer.

Overview: The Catalyst Fermentation System

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.

Bottling

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.