Nitro cold brew machines and cold brew dispensers — draft towers and countertop taps with a stout faucet and onboard nitrogen, so a cafe pours a cascading nitro coffee the way a bar pours stout.
Nitrogen. Forced through a restrictor disc in a stout faucet, it drops the cascade and leaves a dense creamy head; plain cold brew on tap pours flat.
Not always. Some units carry an onboard nitrogenator and run from air; others take a gas cylinder like a stout line. We'll note which a model uses before you order.
A countertop unit suits a cafe adding one line; a tower with its own chilled keg suits volume and reads as a bar. Tell us your peak hour and we'll size it.