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By guruscottyFebruary 26, 2021No Comments

Caffeine Kick-Start

By Michael Hiller
Photo courtesy of GrowlerWerks

Homebrewers take note: You can now nitro-charge your coffee

Blame COVID-19, early-morning Zoom calls or the position of Pluto: Whatever’s blasting a hole in our energy vortex right now is brutal, and the return to daylight saving time (March 14, by the way) is especially tough this year.

Our star chart predicts we’re going to need afternoon shots of caffeine for the next few weeks. Fortunately, our current favorite java jolt sits in our fridge: a 50-ounce keg of nitro cold-brew coffee.

The method couldn’t be simpler: Steep ground coffee in water overnight, strain the resulting liquid gold into our GrowlerWerks uKeg Nitro Cold Brew Coffee Maker, top it with plain water to the fill line and pop in a cartridge of nitrogen. Screw on the keg’s cap, then dial to activate the magic.

The nitrogen infuses the coffee with millions of velvety smooth microbubbles that heighten the brew’s sweetness while adding a creamy and foamy head of froth. It’s like sipping a pint of Guinness but without the drinking-before-5-p.m. guilt. The stainless steel, vacuum-insulated uKeg sits in the fridge, pressurized and ready to dispense 12 cups of luxury when you need it — or until the keg runs dry.

The kit ships with everything you need to get started, including coffee filters, a funnel, nitro gas chargers and a package of good-quality coffee. GrowlerWerks says you can cold-brew the coffee inside the uKeg, but we prefer to perform the overnight work in a Mason jar instead. Once filled, it takes the uKeg less than a minute to supercharge the coffee with bubbles. If we’re in a rush to get our energy delivery system back online, we’ll add a few ice cubes to the brew when we fill the growler.

Now that we keep a uKeg Nitro in the fridge (and a mug of cold nitro joe on our desk), WFH these days seems to flow with a lot less WTH.


GrowlerWerks uKeg Nitro Cold Brew Coffee Maker It’s available for $199 at and Williams Sonoma,