Why supply cannot simply expand
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
Matcha is milled from tencha: leaf grown under shade for weeks before picking, harvested principally in the first flush, steamed, dried without rolling, de-stemmed and de-veined, then ground. Each of those steps is a constraint. Shading requires structures and labour. The single main harvest means a year’s decision is made once. Stone mills produce a small quantity per hour and the mills themselves are a limited manufactured stock. A grower who decides today to make tencha faces years before new plantings and shading infrastructure yield. This is why a demand surge shows up as scarcity and price rather than as more matcha. There is a labour dimension too. Tencha production requires the shading structures to be put up and taken down at the right times, hand or careful machine harvesting, and the de-stemming and de-veining step that separates tencha from ordinary steamed green tea. Japan’s tea sector has an ageing grower population and small average holdings, so the constraint is not only land and mills but people. Growers switching from sencha to tencha is the fastest available response and it is still measured in years rather than seasons.
The supply squeeze, and what it looked like
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
Demand from outside Japan rose sharply through the 2010s and again in the 2020s, driven by cafés, ready-to-drink products, baking and social media. By the mid-2020s, allocation limits from Japanese suppliers, sold-out lines at established houses and sharp price increases were widely reported, and the constraint was consistently described as tencha availability and milling capacity rather than tea plants as such. TeaHQ records the episode as reported market conditions. It does not date the peak or quantify the shortfall, because the trade accounts differ and none has been checked here. The demand side is worth disaggregating, because the categories behave differently. Café drinks and ready-to-drink products take large volumes of mid-grade material. Baking and confectionery take culinary grades and are relatively price-tolerant because the matcha is a small fraction of a finished product. Practitioners and home whiskers take small quantities of the highest grades. A squeeze at the top of the range and a squeeze in bulk are different events, and reporting that does not separate them tends to produce a confusing picture.
“Ceremonial grade” is not a grade
TeaHQ's own reading of well-attested general knowledge, with no single source behind it.
The terms ceremonial, premium and culinary have no defined standard behind them, are not Japanese trade categories, and are applied by whoever is selling. What actually varies is real: harvest, cultivar, shading duration, whether stems and veins were removed, whether the mill was stone, and how long ago it was milled. Those things change colour, texture and bitterness substantially. A buyer who asks about harvest date and milling date learns more than one who asks about grade, and the grade word most likely tells them what the vendor wants the price to be. There are, separately, real Japanese quality distinctions that a buyer can use: the named tea-producing districts, the practice of a merchant naming a blend, competition and prize designations, and the distinction between first-harvest and later-harvest material. None of these translates into the ceremonial-premium-culinary ladder. The grade language exists because the export market wanted a simple hierarchy and the Japanese trade did not supply one, so somebody invented it downstream.
The appropriation argument, stated rather than settled
Specialists disagree. TeaHQ does not pick a winner.
The boom is accompanied by a continuing argument: whether a global café product built on a Japanese practice, sold with borrowed ceremonial vocabulary and frequently made from lower-grade material, constitutes appreciation, ordinary culinary exchange, or extraction from a tradition whose practitioners see none of the value. All three positions are argued by people with a stake in the answer, including in Japan. TeaHQ does not adjudicate it. What it will say is that using the word ceremonial to sell a product that has no relationship to chanoyu is a marketing decision, and it is the part of the argument that is not really contested. One further observation that belongs to the market rather than to the argument: the boom has been good for a number of Japanese growers and merchants, who have seen prices for tencha rise substantially after decades of a shrinking and ageing domestic market. Whether that outweighs the concerns raised is exactly what is being disputed. TeaHQ records both sides being materially true at once, which is usually the situation in appropriation arguments and is rarely how they are reported.