BrewBuilt X3 Uni Tank
Monday Brew Blog
Upgrading the BrewBuilt X3 Uni Tank
Published: Monday 19th January
Video release: Sunday 18th January
The BrewBuilt X3 is already a high-quality stainless steel fermenter, but one of its biggest strengths is how easily it can be upgraded and configured to suit more advanced brewing techniques.
In this week’s video, we take a detailed look at the BrewBuilt X3 Uni Tank, focusing on the upgrades and configuration choices that turn it from a premium conical fermenter into a true home-scale unitank.
What This Video Covers
This video is about the BrewBuilt X3 as a platform and how it can be built up over time rather than used as a fixed, closed system.
In the video, we cover:
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The core design of the BrewBuilt X3
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Why it works so well as an upgradeable fermenter
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The specific upgrades fitted in this setup
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How those upgrades expand what the X3 can do
The Product / System Overview
At its core, the BrewBuilt X3 is designed to be flexible and future-proof.
Key features include:
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Jacketed cooling for precise temperature control
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Pressure-rated stainless steel construction
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Multiple tri-clamp ports for accessories and add-ons
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A conical base with a removable collection jar for trub removal and yeast harvesting
Rather than locking you into a single way of brewing, the X3 is built to adapt as your brewing process evolves.
The Upgrades or Configuration Shown
In the video, we walk through the upgrades that expand the X3’s capabilities and move it firmly into unitank territory.
These include:
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A pressure-capable lid configuration
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A pressure gauge for monitoring internal pressure
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A spunding valve to control fermentation pressure
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Pressure relief for safe operation
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A setup that allows fully closed, oxygen-free transfers
Individually, these upgrades add useful functionality. Together, they fundamentally change how the fermenter can be used.
What This Unlocks for the Brewer
With these upgrades in place, the BrewBuilt X3 becomes far more than a standard fermenter.
The upgraded setup allows you to:
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Ferment under pressure when desired
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Naturally carbonate during fermentation
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Carry out closed transfers to keg
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Reduce oxygen exposure throughout the process
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Condition and package beer from the same vessel
This brings homebrewing workflow much closer to commercial practice.
A More Efficient Brewing Workflow
Keeping the beer in a single, sealed vessel simplifies the entire process.
There’s less handling, fewer cleaning steps, and fewer opportunities for oxygen pickup. The result is a cleaner, more repeatable process and more consistent beer from batch to batch.
Final Thoughts
The BrewBuilt X3 is an excellent fermenter in its standard form, but its real strength lies in how easily it can be upgraded to suit more advanced brewing.
If you want a fermenter that can start simple and grow into a full unitank as your needs change, the BrewBuilt X3 is a strong long-term option. This video shows exactly how those upgrades come together and what they make possible.
Coming Up Next
We release a new brewing video every Sunday morning at 9am, followed by a matching Monday Brew Blog that provides a written reference for each episode.
