GrowlerWerks uKeg Nitro Cold Brew Coffee Maker (50 oz)

The closest home setup to a bar tap: an insulated, pressurised nitrogen keg that holds its charge between pours.

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  • Brand GrowlerWerks
  • Capacity 50 oz
  • Gas 16 g nitrogen chargers (sold separately)
  • Body Double-wall 18/8 stainless steel

Specifications

Brand GrowlerWerks
Capacity 50 oz
Gas 16 g nitrogen chargers (sold separately)
Body Double-wall 18/8 stainless steel
Dispensing Nitrotap

Pros and cons

What we like

  • Regulator cap holds pressure for weeks
  • Double-wall vacuum insulation
  • Tap designed for a cascading pour

What we don't

  • 16 g nitrogen chargers sold separately
  • Takes fridge space; tap and tubing need regular cleaning

The GrowlerWerks uKeg Nitro is a pressurised, vacuum-insulated stainless-steel mini-keg for making, storing and pouring nitro cold brew at home. This listing is the 50 oz model in black chrome.

What the listing says

It uses 16 g nitrogen chargers, sold separately. A regulator cap maintains pressure automatically, which GrowlerWerks says keeps nitro fresh for weeks, and double-wall 18/8 stainless-steel vacuum insulation keeps the coffee cold all day. Its “nitrotap” is designed to dispense a full cascading pour with a creamy texture.

Why a keg works better than a dispenser

The uKeg does two things cheaper formats cannot. It holds pressure between pours, so the gas stays in suspension and the second glass looks like the first, and it pours through a proper tap rather than a nozzle, which is what shapes the cascade and head. Using nitrogen rather than CO2 matters too: nitrogen gives the creamy, non-acidic texture of nitro, while CO2 makes coffee fizzy and sour.

Who it suits

It suits regular nitro drinkers who want several glasses from one charge and are happy to give it fridge space. The trade-offs are size, the ongoing cost of chargers, and cleaning: coffee oils build up in a keg’s tap and tubing, so disassemble and wash them regularly. Follow the manufacturer’s fill line and charger instructions.

How it compares

In our nitro cold brew maker guide it is the best overall system, ahead of the compact NITRO KAFO and the MOSA whipped dispenser.

Details from GrowlerWerks’ Amazon listing. Check the manual for current charger and fill instructions.

Frequently asked questions

What chargers does the uKeg Nitro use?

16 g nitrogen chargers, sold separately.

How long does nitro cold brew stay fresh in the uKeg?

GrowlerWerks says the regulator cap maintains pressure to keep nitro fresh for weeks.

Does the uKeg keep coffee cold?

Yes. Its double-wall vacuum insulation is designed to keep the brew cold all day.

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GrowlerWerks uKeg Nitro Cold Brew Coffee Maker (50 oz)