Nitrogen—a chemical element with the symbol N and atomic number 7
is a transparent, odorless, diatomic gas, that can also be added to a keg along with coffee to yield a foamy,
caffeinated beverage known as “nitro coffee.”
Cold-brew coffee infused with nitrogen gas is released through a pressurized valve with tiny holes.
As high pressure forces the cold brew past a disc, it creates a creamy, stout-like effect.
And in the last year, nitro coffee has insinuated its foamy tentacles into the world of
specialty coffee thanks to its smooth, creamy taste and fizzy beer-esque look.