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Never eat a wild mushroom identified from a website. This one helps you rule things out. It cannot rule anything in.

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Gourmet wood-lovers

Wood ear

Auricularia auricula-judae

Never eat a wild-foraged mushroom you identified from a website, this one included. Wild mushroom misidentification can be fatal, and no page can rule a specimen IN. This reference is about cultivated and shop-bought mushrooms only: species you buy, or grow from bought spawn, where there is nothing to identify. To identify anything wild, consult a qualified local expert holding the actual specimen, never a description on a screen.

Also sold as

  • Black fungus
  • Cloud ear (related A. cornea)
  • Mu er
  • Jelly ear

In the kitchen

Flavour

Almost none of its own; it is grown and eaten for texture and for carrying other flavours.

Texture

Gelatinous and crunchy at once, keeping a distinctive snap after cooking and rehydrating.

In the kitchen

Usually bought dried and soaked back to size, then shredded into hot-and-sour soup, stir-fries and salads for its crunch. Cook it through; the texture is the whole reason it is used.

How it is cultivated

Substrate

Hardwood logs or sterilised supplemented hardwood sawdust, kept very humid and warm.

Fruiting temperature

20-30°C (68-86°F)

Humidity

90-95% relative humidity

How it is grown

Hardwood logs, or a supplemented sawdust block

Time to first harvest

A month or two on a block in warm, humid conditions

How much, how long

Repeated flushes of ear-shaped brackets

Difficulty at home

Intermediate. Undemanding except that it wants real warmth and near-saturated humidity to keep its jelly texture.

What is worth knowing about it

One of the oldest cultivated mushrooms, grown in China for well over a thousand years, and among the most produced in the world by volume. It is a texture ingredient rather than a flavour one, which is why it is nearly always sold dried.

Sources

  • Wikipedia, Auricularia auricula-judae
  • Stamets, Growing Gourmet and Medicinal Mushrooms

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