Matcha is the shade-grown green tea powder people whisk or dump into lattes, and Google Shopping interest for that keyword printed 51 the week of August 22 2026. That is up 21.43% from 42 on August 15 and up 82.14% from 28 on July 25, per Trends MCP get_growth on google shopping. The 260-week get_time_series on the same source runs from September 4 2021 (first print 9) through August 22 2026 and peaked at 100 on August 16 2025. Same-week 2025 printed 35. The Asahi Shimbun dated the Kyoto tencha auction of May 9 2025 at 8,235 yen per kilogram. Google Search for matcha is 87 on August 22, down 13.0% from 100 over 7 days, a search story that fails the mover bar. Shopping is the source that clears the bar and still has a readable cart climb.
About matcha
Matcha is finely ground powder from shade-grown Camellia sinensis leaves, processed as tencha then milled, a definition shared by ISO 20715:2023 and the Japanese food labeling standard that requires two to three weeks of covering before the leaf is picked.
Wikipedia traces powdered tea from Song China into Japan with the monk Eisai around 1191, then to sixteenth-century shade growing that produced modern tencha. Cheap hunmatsucha, crushed from unshaded leaves, is sometimes sold under the same name.
Price is the 2025 fact that still matters for anyone buying a tin. The Asahi Shimbun, on May 10 2025, reported that the year's first tencha auction on May 9 at JA Zen-Noh Kyoto in Joyo averaged 8,235 yen per kilogram ($56.80), 1.7 times the prior year and above the 4,862 yen record set in 2016. Farmers offered 22 lots totaling 1,678 kilograms, with more than 40 wholesalers bidding. The Global Japanese Tea Association's May 2025 report repeated those auction figures.
What the time series shows
Google Shopping interest for matcha printed 51 the week of August 22 2026, up from 42 on August 15 and 28 on July 25, a four-week cart climb off a July trough that still sits 49% under the August 16 2025 peak of 100.
The last eight weekly prints are 39, 36, 34, 28, 32, 42, 42, 51. Same-week marks were 35 on August 23 2025, 22 on August 24 2024, and 17 on August 26 2023. Last year printed 95 on August 9 2025 and 100 on August 16, then 35 the next Saturday.
Spring 2026 was the other bulge. The series sat at 49 on March 28, then 88 on April 18 and 78 on May 23, before 50 on May 30. The 90-day reading from 78 to 51 is a 34.62% drop. The 30-day reading from 28 to 51 is an 82.14% rise. Relative 0-100 shopping interest can fall from a spring bulge and still reaccelerate into late summer. The chart window starts August 24 2024.
Why the page charts Google Shopping
A powder people buy should be tracked on a shopping source first, and Google Shopping for matcha clears both the 7-day +20% bar and the 30-day +25% bar while Google Search for the same keyword fails the 7-day window from a 100 print.
Google Search for matcha is 87 on August 22, down 13.0% from 100 on August 15 and up 3.57% from 84 on July 25. The 7-day print fails +20%. The 30-day print fails +25%. YouTube for matcha is 76 on August 22, down 6.17% over 7 days. Search is a high, cooling query. Shopping is the cart.
Google Shopping is the story source: 42 to 51 in the frozen weekly series over 7 days, 28 to 51 in 30 days, 260 weekly points, week-to-week sample standard deviation 15.38% on the last 52 changes. Same-day get_growth on google shopping, 30-day window, puts ceremonial matcha at 33 (+371.43% from 7), matcha powder at 12 (+140.0% from 5), matcha latte at 44 (+120.0% from 20), and matcha tea at 21 (+110.0% from 10). Hojicha on google search is 88, up 8.64% from 81 over 30 days. Drink context: Starbucks fall menu. Source context: Google Shopping trends.
get_time_series with source google shopping and keyword matcha is the call behind the chart. get_growth on the same pair, windows 7D and 30D, is the headline math: 42 to 51 (+21.43%) and 28 to 51 (+82.14%). Mixing the Google Search 87 with the Shopping 51 would invent a story the APIs do not tell.
A copy-paste pair for Claude or Cursor:
get_time_series source="google shopping" keyword="matcha"
get_growth source="google shopping" keyword="matcha" percent_growth=["7D","30D"]
REST is the same body at https://api.trendsmcp.ai/api with Authorization: Bearer and mode set to get_time_series or get_growth.