Food · Fermented foods

Buna-Shimeji (Beech Mushroom)

ぶなしめじ (Buna-shimeji)

Also known as: Buna-shimeji, Beech mushroom, Hypsizygus marmoreus, ブナシメジ, Honshimeji (incorrect)

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At a glance

Category	Food
Japanese labeling name	ぶなしめじ
Common Japanese notations	ぶなしめじ, ブナシメジ, ホクト, ホンシメジ (※誤称)
Origin	Beech mushroom (Hypsizygus marmoreus); Hokuto Corporation pioneered modern bottle-cultivation; principal modern producers Nagano (Hokuto), Niigata, Fukuoka; year-round indoor cultivation; NOT the same as true honshimeji (Lyophyllum shimeji) which remains nearly impossible to cultivate at scale; widely sold under 'shimeji' colloquial name
Typical functions	Mass-market household mushroom — most-purchased Japanese cultivated mushroom, Hot-pot, stir-fry, miso-soup, pasta universal, Foodservice everyday rotation, Bag-grown convenience format (year-round 100g/200g pack)
Regulatory status in Japan	Standard agricultural product labeling. Buna-shimeji is the cultivated species — labeling 'shimeji' on bag is permitted but distinct from true honshimeji (rare and not cultivated at scale). Not a designated allergen.

Buna-shimeji (ぶなしめじ) — beech mushroom (Hypsizygus marmoreus) — is Japan's mass-market cultivated mushroom. Hokuto Corporation pioneered bottle-cultivation; principal producers Nagano, Niigata. **Distinct from true honshimeji (Lyophyllum shimeji)** which remains nearly impossible to cultivate.

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Classification

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Product applications

Functions

Flavoring486

Regulatory tags

Culinary ingredient512

Origin

Plant-derived319

Common OEM product categories

Finished-product categories where Japanese OEM manufacturers commonly formulate with this ingredient.

Fresh buna-shimeji retail (Hokuto, Yukiguni Maitake brand bags)
Foodservice cut B2B
Frozen pre-cut OEM

Ingredient profile

Hypsizygus marmoreus beech mushroom (cultivated species).

OEM applications

Hot-pot, stir-fry, miso-soup, pasta universal.

Foodservice everyday rotation.

Year-round bag retail.

For OEM: fresh retail, foodservice cut B2B, frozen pre-cut.

Regulatory classification in Japan

Standard food labeling. Origin disclosure. **Distinct from true honshimeji.** Not a designated allergen.

Regulatory classification in other markets

EU	Established culinary mushroom market.
USA	Established culinary mushroom market.
China	Established as 蟹味菇.
Korea	Established as 만가닥버섯.

Market reference formulations

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Quick answers

What is Buna-Shimeji (Beech Mushroom)?: Buna-shimeji (ぶなしめじ) — beech mushroom (Hypsizygus marmoreus) — is Japan's mass-market cultivated mushroom. Hokuto Corporation pioneered bottle-cultivation; principal producers Nagano, Niigata. **Distinct from true honshimeji (Lyophyllum shimeji)** which remains nearly impossible to cultivate.
What is the regulatory status of Buna-Shimeji (Beech Mushroom) in Japan?: Standard agricultural product labeling. **Buna-shimeji is the cultivated species** — labeling 'shimeji' on bag is permitted but distinct from true honshimeji (rare and not cultivated at scale). Not a designated allergen.
What products typically use Buna-Shimeji (Beech Mushroom)?: Fresh buna-shimeji retail (Hokuto, Yukiguni Maitake brand bags) / Foodservice cut B2B / Frozen pre-cut OEM
Where does Buna-Shimeji (Beech Mushroom) come from?: Beech mushroom (Hypsizygus marmoreus); Hokuto Corporation pioneered modern bottle-cultivation; principal modern producers Nagano (Hokuto), Niigata, Fukuoka; year-round indoor cultivation; **NOT the same as true honshimeji (Lyophyllum shimeji)** which remains nearly impossible to cultivate at scale; widely sold under 'shimeji' colloquial name
What is the INCI / JSCI labeling name for Buna-Shimeji (Beech Mushroom)?: JSCI: ぶなしめじ

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MEXT 食品成分DB（検索） ↗

References

文部科学省 (Ministry of Education, Culture, Sports, Science and Technology) Standard Tables of Food Composition — ぶなしめじ

Last updated: 2026-04-28. Ingredient entries are reviewed at least annually against current regulatory listings.