Japan puts unsweetened tea in a can
Selling tea in a can with nothing added to it required solving a real technical problem, and it changed what a beverage market could contain. Most tea drunk in Japan today is bought ready-made.
Canned oolong from 1981; canned unsweetened green tea from 1985
A process, not a moment. This happened over a period rather than on a date, and the span is the honest answer.
Documented. Attested in the historical record, and sourced to it.
What happened
Ready-to-drink tea in cans and later PET bottles was introduced without sugar, which required managing the oxidation and colour change that unsweetened green tea undergoes when heated and stored. Vending machines made it ubiquitous, and the format spread across East Asia and then internationally.
Why it matters
It is the largest single change in how tea is consumed in the last half-century and it is almost invisible in Western tea writing. It also created the expectation, now global, that tea is something you can buy cold and unsweetened — an expectation that shaped everything from convenience-store ranges to the modern matcha drink.
Who was involved
Ito En
companyIntroduced canned oolong tea and then canned unsweetened green tea
Connected events
- The 1980s — Bubble tea, and two shops that both claim it
- From the 2000s, with acute supply pressure from the mid-2020s — The matcha boom, and the shortage it produced
What this touches
Producing countries
Culture and history
Compiled from published sources by people who are not historians of this region or period. Where accounts conflict the disagreement is reported rather than settled.