---
product_id: 64908002
title: "Catalyst Fermentation System"
brand: "craft a brew"
price: "€ 139.75"
currency: EUR
in_stock: true
url: https://www.desertcart.hr/products/64908002-catalyst-fermentation-system
store_origin: HR
region: Croatia
---

# 6.5 Gallon Capacity Trub Trap Valve Complete Brewing Kit Catalyst Fermentation System

**Brand:** craft a brew
**Price:** € 139.75
**Availability:** ✅ In Stock

## Summary

> 🍻 Unleash Your Inner Brewmaster with the Catalyst!

## Quick Answers

- **What is this?** Catalyst Fermentation System by craft a brew
- **How much does it cost?** € 139.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/64908002-catalyst-fermentation-system)

## Best For

- craft a brew enthusiasts

## Why This Product

- Trusted craft a brew brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Brew Like a Pro:** Transform your home brewing experience with our state-of-the-art conical fermenter.
- • **Crafted for Quality:** Designed for both beginners and seasoned brewers to elevate your homebrew game.
- • **Versatile Compatibility:** Easily connect with any large mouth mason jar for seamless yeast storage.
- • **All-in-One Brewing Solution:** Includes everything you need to craft your perfect brew, from tank to bottling.
- • **Sediment Separation Simplified:** Say goodbye to messy transfers with our innovative design that separates sediment effortlessly.

## Overview

The Catalyst Fermentation System is a 6.5-gallon plastic conical fermenter designed for home brewers. It features a Trub Trap butterfly valve for easy sediment separation and comes with a complete brewing kit, making it perfect for both novices and experienced brewers looking to enhance their craft.

## Description

If you could eliminate one chronic home brewing time-suck, what would it be? How about the Transfer Trap. . . You know, where you endlessly shift your homebrewed beer from fermenter, to secondary to bottling bucket, to bottles, risking contamination and messy spills at every step. The great news is, you can. There's a better, simpler way: The Catalyst - an ingeniously designed fermentation system from Craft-A-Brew. The Catalyst's tank is made from Titrant, a food-safe, BPA-free polymer. This revolutionary material retains the same clarity and smoothness of glass, but is resistant to shattering. It is more durable and outlasts the other types plastic typically used in home brewing. You can even put it and the removable silicone gasket in your dishwasher for easy cleanup. Properly cared for, the tank will last for years to come. The Catalyst is engineered to optimize ever cubic inch of space, resulting in an incredibly sturdy stand with I-beam and honeycomb construction, squat 6. 5 Gallon tank and 3" Trub Traps Butterfly Valve - the largest in the industry. The result is an efficient, practically indestructible system that fits easily under a table or on a countertop. No specialized equipment required. The Trub Traps on The Catalyst is designed to work with any large-mouthed mason jar, which makes catching and storing viable yeasts or separating sediment super simple. The Catalyst Fermentation System Includes: 6. 5 Gallon Tank with Lid Stand (Base, 2 Legs, 2 Support Beams, 8 Screws) 3" Proprietary Butterfly Valve Bottling Attachment Transfer Tubing Clamp Rubber Stopper 16 Oz. Wide Mouth Mason Jar Allen Wrench Dimensions: The Stand: Height: 14. 75" Width: 17" Depth: 13. 75" Unit Size: Total Height (does not include airlock): 26. 25" Maximum Width: 17".

## Features

- CONICAL FERMENTER ? The future of fermentation is here with elegant brewing equipment which simplifies the process of making beer and wine at home. Enjoy a system that separates sediment, eliminates transfers, and lets you bottle straight from your fermenter.
- BECOME A MASTER BREWER ? All you need to make great beer at home is included here. Supplies include a giant 6. 5-gallon conical tank, bottling attachment, transfer tubing, rubber stopper, 16 oz wide mouth glass mason jar, and more.
- COMPATIBLE BUTTERFLY VALVE ? The 3? Trub Trap butterfly valve ? the largest in the industry ? is designed to work with any large mouth mason jar (8oz, 16oz, 24oz 32oz), which makes separating sediment and catching and storing viable yeast super simple.
- CRAFT A BREW QUALITY ? At Craft a Brew, we?re dedicated to the home brewing process and, whether you?re a newcomer or a longtime home brewer, it?s time you got the best conical fermenter kit for the best possible homebrew.
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Craft a Brew (BISS) |
| Part number | BE-CAT |
| Item Weight | 5.44 kg |
| Product Dimensions | 41.91 x 39.37 x 45.72 cm; 5.44 kg |
| Item model number | BE-CAT |
| Size | 6.5 Gallons |
| Colour | Clear |
| Style | Conical Fermenter |
| Material | HDPE |
| Item Package Quantity | 1 |
| Measurement System | US |
| Included components | 1 Catalyst |
| Batteries included? | No |
| Batteries Required? | No |

## Images

![Catalyst Fermentation System - Image 1](https://m.media-amazon.com/images/I/71aFnBhXzJL.jpg)
![Catalyst Fermentation System - Image 2](https://m.media-amazon.com/images/I/81M2ioouFNS.jpg)
![Catalyst Fermentation System - Image 3](https://m.media-amazon.com/images/I/71KLGzFJTwS.jpg)
![Catalyst Fermentation System - Image 4](https://m.media-amazon.com/images/I/8190MVKc6-S.jpg)
![Catalyst Fermentation System - Image 5](https://m.media-amazon.com/images/I/A1zxyiC8+kS.jpg)

## Available Options

This product comes in different **Style Name** options.

## Questions & Answers

**Q: When you unscrew the mason jar, will it be completely full and spill everywhere?**
A: It can drip a bit. On YouTube on the CraftABrew channel there is a video that shows a demonstration. They place a small bowl under the mason jar to catch any excess. Expect the jar to be full, which is a good thing in terms of reducing gas in the headspace of the jar.

**Q: Is it possible to use it to decant the trub after boiling the mash? Is it high temperature resistant?**
A: Ely F, This was a gift to my son in law, so here is his answer to your question.: But, yes it collects all the undesirables, he can’t add boiling liquid to it. He’d have to chill the mash to 70-75 degrees. The Catalyst will withstand the temperature from a dishwasher, but if they are asking if they can pour boiling hot wort into it, they should use a wort chiller before adding it to the Catalyst.
16 oz. mason jars are recommended for collecting the trub. After that, 8 oz jars are recommended for collecting yeast if they choose to reuse it for future batches.

**Q: How do you clean and sanitize the lid?   Do you have to remove that gasket to effectively sanitize it?**
A: The removing the gasket is the easy part, getting the gasket back on while it's slippery from Sanitizer is the harder part. But seriously it's not anywhere as troublesome as trying to clean an old school carboy or sanitizing and using the autosiphon. I just flip the lid upside down with the bung in it, support it so it stays still and pool my sanitizer in it like a shallow bowl.

**Q: Is this PVC?**
A: The tank is made of Tritan which is a medical grade polymer that is completely inert and can withstand temperatures unto 230F.

## Frequently Bought Together

- Craft A Brew - The Catalyst Fermentation System - 6.5 gal Conical Fermenter for Beer Home Brewing and Wine Making
- Twin Bubble Airlock and Carboy Bung (Pack of 2)
- Lalvin EC-1118 Wine Yeast (10 Pack) - Champagne Yeast - Make Wine Cider Mead Kombucha At Home - 5 g Sachets - Saccharomyces cerevisiae - Sold by CAPYBARA Distributors Inc.

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-18*