by Shizuoka Chaen静岡茶園
A 30g koicha-designated matcha sold by Shizuoka Chaen for tea gatherings. The official page says it is made for koicha but can also be enjoyed as usucha; origin is listed broadly as domestic.

Editorial verdict
The highest-positioned matcha in the current official lineup, with a koicha-first brief and a premium price within the brand's catalog.
No buying options yet — check back soon. Visit the brand page for more information.
Official positioning points to a richer, fuller matcha intended first for koicha while remaining suitable for usucha.
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Shizuoka Chaen Official Product Page
Supports: Official product page lists 30g, ¥2,160, domestic origin, and positions it for koicha while noting it can also be enjoyed as usucha; currently sold out.
Shizuoka Chaen Powder Category
Supports: Official powder category confirms live JPY listing for shizuoka-chaen-ikuyo-no-mukashi.
About the brand
静岡茶園
Shizuoka Chaen (株式会社静岡茶園) is a Shizuoka City tea producer, manufacturer, wholesaler, and retailer founded in April 1973 and incorporated on September 24, 1976. The company operates its headquarters in Suruga Ward and a factory in Aoi Ward, is led by Representative Director Motosuke Mochizuki, and presents its mission as aiming for Japan's most delicious tea through careful soil-building and skilled tea-master finishing. Its official Japanese shop centers deep-steamed green tea while also selling powder teas, sweets, and a small matcha lineup including Asahina- and Nishio-sourced products.
View all Shizuoka Chaen blendsOfficial positioning points to a richer, fuller matcha intended first for koicha while remaining suitable for usucha.
Ikuyo no Mukashi is priced at ¥2,160 for 30g (¥72/g).
Ikuyo no Mukashi is recommended for koicha. Thick tea — a concentrated preparation using about 4g of powder and 30ml of water, reserved for the highest-grade matcha.
You can buy Shizuoka Chaen Ikuyo no Mukashi directly from Shizuoka Chaen's official website. Current availability: out_of_stock.