Recently, Ration & Dram  in Kirkwood became one of the first places in Atlanta to serve nitrogen-infused coffee. Poured on draft by the glass and in cocktails, the process creates a cascading, mildly carbonated beverage with a creamy mouthfeel, similar to Guinness Stout or Left Hand Milk Stout.

The cold-brewed "nitro coffee" is made with beans from Batdorf & Bronson and poured cold from kegs. It is available at brunch and dinner in six- and ten-ounce pours by the glass and in cocktails, including the Rise ‘N’ Shine, made with  Troy & Sons Moonshine, Averna Amaro vanilla syrup, and Jamaican Coffee, made with Blackwell Jamaican rum, Amarula fruit cream liqueur. There is also an option to add house-made vanilla syrup straight to the nitro coffee to make a coffee cream soda.

Though "nitro coffee" was named a food “trend to watch” for 2015 by Bon Appetit magazine, nitro beer has been a fixture at bars and restaurants for a long time.

And now there's NitroBrew, a compact device for nitro-infusing beer and other beverages, which is available for sale online.

It's advertised as "the first commercially available product designed to bring nitrogenating technology into the home, enabling beer lovers to nitrogenate store-bought brews and hobbyist beer brewers to create their own nitro-style brews from scratch. In under a minute, NitroBrew turns any home-brewed or bottled beer into a sensational, silky nitro-style beer masterpiece."

Prices start at $499, if you're thinking of a nitro Father's Day gift.