by Okunishi Rokuhoen奥西緑芳園
Okunishi Rokuhoen's flagship koicha, blended to the personal preference (goonomi) of Yuyusai, the 15th-generation grand master (iemoto) of the Omotesenke school of Japanese tea ceremony. Sold in 30g and 100g cans, pouches, and gift-boxed cans.

Editorial verdict
The brand's top-tier iemoto-preference blend and the natural flagship pick — the Omotesenke connection is the strongest single storytelling and SEO hook in the catalogue.
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A rich, thick-tea (koicha) style matcha the brand describes as suited to formal chanoyu preparation; the product page notes it can also be whisked thinner as usucha.
Other blends from Uji
Okunishi Rokuhoen Official Online Shop
Supports: Price ¥4,461/30g can and ¥15,330/100g bag; blended to Omotesenke iemoto Yuyusai's preference
About the brand
奥西緑芳園
Okunishi Rokuhoen (株式会社奥西緑芳園) is a Kyoto tea house founded in 1865 (Keio 1) by Okunishi Risaburo I under the guidance of the Kanbayashi family, hereditary tea masters of Uji. Now run by fifth-generation president Okunishi Kazuo from Kyotanabe, the company says it has managed its own tea gardens in the area for roughly 350 years and handles cultivation, processing, and sales in-house. It holds Imperial Household supplier status, having provided matcha for palace garden parties and tea ceremonies, and supplies temples including Kyoto's Daitokuji (and its sub-temple Tokuzenji) and Kamakura's Enkakuji, several of whose past abbots lent their names and preferences to specific matcha blends. The company was incorporated in November 1952 with ¥10 million in capital and 7 employees, and describes its business as manufacturing, wholesale, and retail of Japanese tea.
View all Okunishi Rokuhoen blendsA rich, thick-tea (koicha) style matcha the brand describes as suited to formal chanoyu preparation; the product page notes it can also be whisked thinner as usucha.
Yamashiro no Mukashi is sourced from Uji, Japan.
Yamashiro no Mukashi is priced at ¥4,461 for 30g can (¥149/g).
Yamashiro 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 Okunishi Rokuhoen Yamashiro no Mukashi directly from Okunishi Rokuhoen's official website. Current availability: in-stock.