小柳津清一商店
Shizuoka tea manufacturer founded in 1949 that operates as both a tea wholesaler and finished-goods maker, with in-house tea finishing, matcha processing, and the direct retail brand Gashoan.
Brand story
Oyaizu Seicha built its business on Shizuoka tea, then expanded into food manufacturing and cafe retail while keeping tea processing in-house. Its official matcha page emphasizes producer-sourced tencha, internal finishing and blending, and controlled powdering to keep quality stable across consumer and foodservice products.
Official stores and authorized retailers across Japan.
Supports: Founded on 1949-02-14 in Shizuoka; headquarters at 1-5-38 Mukoushikiji, Suruga-ku, Shizuoka; certifications include FSSC 22000, Halal, and Organic JAS.
Supports: The company sources aracha tencha from producers, then performs in-house selection, finishing, blending, and grinding for matcha production.
Supports: The official product page routes the brand's matcha offer to the online-shop matcha category.
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