by Kyo Hayashiya京はやしや
Kyo Hayashiya's flagship ceremonial Uji matcha, made only from the rare Asahi cultivar and positioned by the brand as its highest-grade straight matcha. The product page notes it has been offered to Ise Jingu's Inner Shrine.

Editorial verdict
The house flagship: aromatic, polished, and fully suitable for either usucha or koicha when the goal is the brand's highest-level pure matcha experience.
Best for
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Exceptional high aroma, deep umami, and a pale-leaning vivid grind color from very young leaves.
Other blends from Uji
Kyo Hayashiya Official Online Shop
Supports: 抹茶 「天下の昔(てんかのむかし)」20g缶入り; official Japanese product page, JPY price 4039.00, package 20g, availability in-stock
Supports: 抹茶 「天下の昔(てんかのむかし)」20g缶入り; official category listing confirms lineup and current Japanese retail presentation
About the brand
京はやしや
Kyoto tea house founded in 1753 that pairs long Uji tea expertise with a modern tea-cafe and confectionery culture. Its official lineup centers on ceremonial-grade Uji matcha and matcha sweets.
View all Kyo Hayashiya blendsExceptional high aroma, deep umami, and a pale-leaning vivid grind color from very young leaves.
Tenka no Mukashi is sourced from Uji, Japan.
Tenka no Mukashi is priced at ¥4,039 for 20g (¥202/g).
Tenka no Mukashi is recommended for usucha. Thin tea — the standard way to prepare matcha, whisked with about 2g of powder and 70ml of water.
Tenka no Mukashi uses the Asahi cultivar.
You can buy Kyo Hayashiya Tenka no Mukashi directly from Kyo Hayashiya's official website. Current availability: in-stock.