Nitro cold brew

Cold brew infused with nitrogen (N₂) under pressure and served on tap, producing creamy texture and fine foam comparable to a stout. High caffeine content (160-200mg/330ml). No sugar or milk needed.

Background & Context

Nitro cold brew is cold brew coffee infused with nitrogen gas and served on draft — the same technology used for draught Guinness stout. The nitrogen infusion creates a cascade of tiny bubbles (nitrogen is less soluble in liquid than CO₂, producing smaller, more stable bubbles) that give the coffee a velvety, creamy texture and a persistent foam head resembling Guinness. Nitro cold brew was commercialised at scale by Stumptown Coffee Roasters (Portland) in 2013 — one of the first US roasters to serve it on tap — and was popularised nationally when Starbucks introduced a canned and draft nitro cold brew line in 2016–2018. The nitrogen infusion suppresses perception of bitterness and amplifies sweetness: the same cold brew concentrate tastes sweeter and creamier on nitro than poured still, without adding any milk or sugar.

Practical Use

For café operators, nitro cold brew requires a keg and draft system infrastructure (nitrogen tank, regulator, stout faucet) — an upfront equipment investment of €500–2,000 that is offset by high margins (nitro cold brew typically retails at €5–7 per 250ml serve) and strong repeat customer demand from health-conscious customers seeking non-dairy, low-calorie indulgence. Operational considerations: cold brew concentrate should be brewed to 1:4 coffee-to-water ratio (higher than still cold brew) to compensate for the dilution effect of nitrogen infusion; the keg should be kept at 4°C and served within 5–7 days of kegging for optimal freshness. For home nitro, small countertop whip cream charger systems (ISI Twist, iSi Gourmet Whip) using N₂O (nitrous oxide — a less precise substitute for pure nitrogen) can approximate the effect at lower cost.

Related Terms

Related terms: Cold brew, Espresso tonic, Caffeine, Body.