300 DAYS FRESHNESS · NO REFRIGERATION NEEDED · MADE FOR ANYWHERE

Shanghai · Since 2020

Fresh drinks.
Freed.

We put café and bar flavor into a pocket-sized tube—then use nitrogen to keep it bright for 300 days.

@once nitrogen preservation tube illustration
O2 Oxygen out→N2 Nitrogen in
O2
Oxygen removed

Less oxygen means less oxidation and slower flavor loss.

N2
Nitrogen protected

Food-grade nitrogen keeps every tube bright and shelf-stable.

<0.8%residual oxygen

Why @once

Great drinks should go wherever you do.

No machine. No fridge. No long recipe. Just thoughtfully extracted coffee, cocktails and whole-leaf tea, ready when you are.

25× espresso12× cold drip300 days fresh

M.A.P. technology

A little less oxygen.
A lot more fresh.

Modified Atmosphere Preservation replaces oxygen with food-grade nitrogen before each tube is sealed.

01

Extract

We capture the drink at its brightest.

02

Protect

Nitrogen pushes out flavor-dulling oxygen.

03

Seal

The tube stays fresh without refrigeration.

Patent CN 201921386707.5 · Food-grade N₂ · No refrigeration

Made here. Going everywhere.

One small tube.
A very big world.

From Shanghai to 17 overseas markets and 14,000+ retail locations across China.

Say hello →
@once products in retail