Fermenter King Junior 20L - Pressure Fermenter

Fermenter King Junior 20L — Pressure Fermenter

The most affordable 20L PET unitank on the market. Pressure ferment, naturally carbonate, and serve your beer — all from a single vessel. Perfect for fresh wort kits and brewing kits, and a straightforward upgrade for any home brewer who wants to reduce oxidation and improve beer quality.

Why Pressure Ferment?

• Reduces yeast ester and fusel production for a cleaner flavour profile
• Ferment at higher temperatures without producing off-flavours
• Natural carbonation from CO2 generated during fermentation — no need to wait an extra week
• Closed fermentation retains aroma compounds that would otherwise be lost
• Serve directly from the unitank, counter-pressure fill bottles, or transfer to a keg under pressure
• Ideal for lagers — lower ester production and the ability to ferment at 21°C for a traditional lager flavour

Features

• Same tank mould as the Fermenter King Kegs
• Crystal clear PET material — same as the 30L and 60L Unitanks
• Full pressure fermentation capability — attach a spunding valve to the gas post to get started
• Minimise oxidation through closed pressure fermentation

What's Included

• Pressure lid with PRV rated to 2.4 BAR (35 PSI)
• Crystal clear PET tank
• Stainless steel ball lock gas and liquid posts
• Silicone dip tube with stainless steel float ball

Dimensions

• Base width: 259.4mm
• Height to top of posts: 586.9mm

Note: a spunding valve is required to control internal pressure and is sold separately. The fermenter can be connected directly to a tap system or handheld tap to serve from.