by Saijoen西条園
A koicha with rich body and umami positioned as an accessible starting point within Saijoen's thick-tea line. The official shop recommends it for both regular enjoyment and tea-practice use.
Editorial verdict
The most approachable official koicha in the line, with strong value for practice.
Aiya Official Store
¥4,680 / 20g
≈$29 total
¥234/g
The Whiskful Matcha
Best priceA$29.25 / 20g
≈$21 total
A$1.46/g
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USD amounts are approximate, converted at rates from 2026-08-28. You pay the price shown by the seller in their own currency.
Dense and savory with strong umami, deeper aroma, and an easy-entry koicha profile.
Tracked across 2 merchants
Price trend
¥4,680
Range: ¥3,624 — ¥4,680
| Merchant | Price | Per gram | Status | Checked |
|---|---|---|---|---|
| aiya-official· 20g | ¥4,680 | ¥234/g | In Stock | Aug 27, 2026 |
| the-whiskful-matcha· 20g | A$29.25 | A$1.46/g | In Stock | Aug 27, 2026 |
Other blends from Nishio
Supports: Seisho no Mukashi: 20g for ¥3,624 with official product description and usage guidance.
Supports: Seisho no Mukashi: 20g for ¥3,624 with official product description and usage guidance.
About the brand
西条園
Saijoen is AIYA's consumer-facing matcha brand from Nishio, Aichi, pairing long-standing stone-milled matcha production with modern retail, cafe, and sweets formats.
View all Saijoen blendsDense and savory with strong umami, deeper aroma, and an easy-entry koicha profile.
Seisho no Mukashi is sourced from Nishio, Japan.
Seisho no Mukashi is priced at ¥3,624 for 20g (¥181/g).
Seisho 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 Saijoen Seisho no Mukashi directly from Saijoen's official website. Current availability: in-stock.