Less oxygen means less oxidation and slower flavor loss.
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.

O2 Oxygen out→N2 Nitrogen in
Oxygen removed
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 freshM.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.
Extract
We capture the drink at its brightest.
Protect
Nitrogen pushes out flavor-dulling oxygen.
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.
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