Why Sweetened Matcha Caught On

Matcha with sugar entered Japanese households in the twentieth century.

1930: vacuum-canned

The idea was to make matcha accessible without its usual equipment and procedure.

Uji matcha combined with granulated sugar was vacuum-canned and sold — reportedly an industry first, in 1930.

Matcha normally requires a chasen and some technique. Add sugar, improve solubility, and it becomes something you stir into water.

Adoption from the mid-1950s

Real uptake ran roughly 1955 to 1975, driven by three conditions converging.

Household refrigeration Ice at home meant demand for cold drinks rose sharply.

Appetite for sweet beverages Products aimed at children and younger consumers wanted low bitterness and easy drinking.

Availability outside the home In 1962, a green tea stand opened in the basement of the Hankyu department store in Umeda, Osaka.

Why Kansai

Sweet shops and tea retailers in Kyoto and Osaka took it up actively.

Uji was nearby, and businesses already handled tea. Summers are demanding, so cold drinks had a market. Those two conditions overlapping explains the concentration.

In Kansai the term still typically means a cold sweetened matcha drink — regional variation traceable to this pattern.

The name

Guriin tii rather than sweetened matcha reflected the period.

A katakana loanword signaled novelty and sophistication, which suited a café product.

Sugar had a second function

Beyond taste, sugar binds free water in a product, reducing what microorganisms can use — the principle behind candied fruit.

A powder that is largely sugar resists spoilage twice over. With limited refrigeration infrastructure, room-temperature distribution mattered.