Food · Fermented foods
Shiitake (Fresh and Dried Shiitake Mushroom)
しいたけ (Shiitake)
Also known as: Shiitake, Lentinula edodes, 椎茸, Kinoko-no-king (king of mushrooms), Donko (dried thick-cap premium), Koshin (dried thin-cap)
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| Category | Food |
|---|---|
| Japanese labeling name | しいたけ |
| Common Japanese notations | しいたけ, 椎茸, シイタケ, どんこ, こうしん, 原木しいたけ, 菌床しいたけ |
| Origin | Shiitake mushroom (Lentinula edodes); cultivated since 1600s in Japan; two principal cultivation methods — genboku-shiitake (原木 / log-grown) and kinshou-shiitake (菌床 / sawdust-block-grown); principal modern domestic regions Oita (Kunisaki/Bungo log-shiitake heritage), Tokushima, Iwate, Hokkaido; significant Chinese imports for cost-positioned applications |
| Typical functions | Fresh whole shiitake — universal cooking ingredient, Dried shiitake (donko premium thick-cap and koshin thin-cap) — major retail and dashi ingredient, Premium kaiseki and traditional Japanese cuisine, Functional positioning (β-glucan immune support, eritadenine cholesterol), Premium gift retail (Oita Kunisaki donko) |
| Regulatory status in Japan | Standard agricultural product labeling. 'Genboku-shiitake' (log-grown) vs 'kinshou-shiitake' (sawdust-block-grown) disclosure is increasingly important for premium positioning. Domestic vs Chinese-imported origin disclosure essential. Not a designated allergen. |
Shiitake (しいたけ / 椎茸) — Lentinula edodes — is one of Japan's most important and beloved mushrooms with extensive OEM applications: as fresh whole shiitake universal cooking ingredient, as dried shiitake (donko premium thick-cap, koshin thin-cap) — a major retail and dashi ingredient (see also separate shiitake-dashi entry), as premium kaiseki and traditional cuisine ingredient, as functional positioning food (β-glucan immune support, eritadenine for cholesterol), and as premium regional gift retail (Oita Kunisaki donko is iconic). Critical positioning distinction: 'genboku-shiitake' (log-grown) commands substantial premium over 'kinshou-shiitake' (sawdust-block-grown). Significant Chinese imports supply cost-positioned market.
Classification
Tags below link to other ingredients sharing the same attribute, so you can pivot from one ingredient to its peers.
Product applications
Functions
Regulatory tags
Origin
Used in (typical product categories)
Finished-product categories that commonly include this ingredient in Japanese-market formulations.
- Fresh whole shiitake retail (year-round)
- Dried shiitake (donko, koshin formats)
- Pre-sliced and frozen shiitake
- Genboku (log-grown) premium retail
- Oita Kunisaki donko premium gift
What it is
Lentinula edodes shiitake mushroom. Two cultivation methods: genboku (原木, log-grown — traditional, premium-positioned) and kinshou (菌床, sawdust-block, modern volume).
Dried shiitake forms: Donko (thick-cap, partially-opened — premium), Koshin (thin-cap, fully-opened — volume).
Production: Oita (Kunisaki/Bungo log-shiitake heritage), Tokushima, Iwate, Hokkaido. Chinese imports.
Typical uses in Japanese products
Fresh universal cooking — sukiyaki, nimono, tempura, grilled, stir-fry.
Dried shiitake — dashi production (see shiitake-dashi entry), simmered preparations, Chinese-influenced cooking.
Premium kaiseki — Donko premium grade.
Functional positioning — β-glucan, eritadenine.
Oita Kunisaki donko premium gift retail.
For OEM: fresh shiitake retail, dried donko and koshin retail/ingredient supply, log-grown premium retail, premium gift retail OEM.
Regulatory classification in Japan
Standard food labeling. Genboku vs kinshou cultivation disclosure increasingly important.
Domestic vs Chinese-imported origin disclosure essential.
Functional health claims (β-glucan, eritadenine) require Foods with Function Claims (FFC) registration.
Not a designated allergen.
Regulatory classification in other markets
| EU | Imported as shiitake. Established global category. |
|---|---|
| USA | Established US shiitake retail. Domestic and imported supply. |
| China | China is major shiitake producer. Japanese-origin Oita Kunisaki donko positioned as premium specialty. |
| Korea | Established Korean shiitake (표고버섯) culture. |
Example products
Example finished products will be added after verification of cultivation method, origin, and product format.
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From the same origin
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FAQ for OEM buyers
Q. What's the difference between genboku-shiitake (log-grown) and kinshou-shiitake (sawdust-grown) for OEM?
The two cultivation methods produce significantly different products: (1) Genboku-shiitake (原木しいたけ, log-grown) — traditional method using shii or kunugi oak logs inoculated with shiitake spawn and incubated outdoors for 2-3 years before harvest. Distinctive thick caps, intense flavor, premium-positioned. Oita Kunisaki area is the heritage production region. Higher pricing reflects labor-intensive production. (2) Kinshou-shiitake (菌床しいたけ, sawdust-block-grown) — modern industrial method using sawdust blocks inoculated with shiitake spawn and grown in climate-controlled facilities. Faster production cycle (3-6 months), thinner caps, milder flavor, cost-positioned. Volume retail and processed food applications. For OEM positioning: premium retail and gift category requires genboku origin disclosure; volume cost-positioned applications use kinshou; donko (premium thick-cap dried) is most often genboku origin. Origin labeling distinction is increasingly consumer-expected.
Sources · Last reviewed: 2026-04-28
- Editorial — Japan shiitake cultivation method reference
References
- MEXT Standard Tables of Food Composition — しいたけ 各形態
- Oita Kunisaki donko production reference
Last updated: 2026-04-28. Ingredient entries are reviewed at least annually against current regulatory listings.