Ingredients
Wood Ear Mushroom — Stored

Stored

Dried wood ear mushrooms sold in their compact, shriveled storage state before soaking.

Dried form is how most buyers first encounter this ingredient; showing the shrunken, blackish clusters teaches recognition at point of purchase.

Produce

Wood Ear Mushroom

Dark, crunchy ear-shaped fungus rehydrated for Chinese soups and stir-fries.

Wood ear is a dark brown to black gelatinous fungus, usually sold dried and rehydrated before use. It has almost no flavor of its own but a prized springy, crunchy texture, making it a textural element in Chinese hot-and-sour soup, moo shu, and stir-fries. It swells dramatically when soaked, so a small amount goes a long way.

Wood ear mushroom is a dried jelly fungus prized in East Asian cuisines for its distinctive texture rather than its flavor. When rehydrated, it transforms from a dark, papery, ear-shaped wafer into a soft, rubbery-gelatinous disc with a delicate crunch at the edges. The fungus has almost no taste of its own, functioning instead as a textural counterpoint and a vehicle that absorbs and amplifies surrounding flavors—a quality that makes it indispensable in dishes where mouthfeel is paramount. Its ability to soak up savory broths while retaining a slight resistance makes it the secret structural element in classics like Chinese hot and sour soup, where it provides the satisfying chew that balances the acid and heat.

Known as mu err in Chinese, kikurage in Japanese, and pey deung-i in Korean, wood ear grows wild on dead and dying hardwoods, particularly elder, oak, and beech trees across temperate regions of Europe, North America, and Asia. The dried form, which keeps for one to two years, is the standard market presentation—reconstitution requires only 20 to 30 minutes in warm water, during which the mushrooms expand roughly tenfold, lightening from dark brown to a translucent gray-tan. The Latin species name Auricularia auricula-judae gave rise to the English "Judas's ear," reflecting an old European association with the elder tree; despite the macabre ring, the fungus has been gathered and cooked across multiple continents for centuries. Always cook wood ear before eating—raw consumption is not recommended.

Measured in
g
Storage
Pantry

Types & varieties

Black Wood Ear (Auricularia auricula)

Most common variety in Chinese and Korean cuisine; dark brown to black when dried, grayish-tan when rehydrated

White Wood Ear / Silver Ear (Tremella fuciformis)

Different species; softer, more gelatinous texture; used in soups and desserts; also called Snow Fungus or White Jelly Fungus

Golden Wood Ear (Auricularia fuscosuccinea)

Less common; reddish-brown to amber color; same culinary use as black variety

Rehydrating and Preparing Wood Ear

Proper rehydration is essential to getting the best texture from wood ear mushrooms. The process is straightforward but requires attention to a few details.

  • Rinse dried mushrooms briefly under cold water to remove any surface grit or debris before soaking
  • Submerge in warm water (not boiling) for 20–30 minutes until fully pliable and expanded
  • For faster rehydration, blanch in boiling water for 5–10 minutes, then drain
  • After rehydrating, pinch off and discard the tough central stem where the mushroom attached to the log
  • If grit remains, swish the mushrooms in clean water and drain; repeat 2–3 times if necessary
  • Squeeze out excess water before adding to stir-fries to prevent steaming instead of browning

Common uses

Hot and sour soup (suān là tāng) as the textural backbone of the brothStir-fries with vegetables and protein; holds its shape under high heatFresh spring rolls and summer rolls; provides crunch contrasting soft fillingsHot pot and fondue; absorbs savory broth while adding textural interestStuffed into dumplings or buns; shred or roughly chop before adding to fillingKorean namul (seasoned vegetable side dishes); dressed with sesame oil, garlic, and soy sauceTianmian sauce dishes—sweet and savory Chinese noodle saucesBraised and red-cooked meats; absorbs meat juices during long, slow cookingKorean juk (rice porridge); added near the end for texture contrast

Tips & pitfalls

  • Remove the tough central stem before cooking—it's too fibrous to be pleasant
  • Do not overcook: 2–4 minutes in a stir-fry is sufficient; extended cooking makes them rubbery and dull
  • For cold dishes like salads or spring rolls, blanch for 30 seconds then shock in ice water to set a pleasant crunch
  • Add to soups during the last 5–10 minutes of cooking to maintain some texture rather than dissolving into the broth
  • Store dried wood ear in the freezer to extend shelf life and prevent insect infestation
  • Squeeze out excess water before stir-frying; wet mushrooms steam and become soggy
  • A common mistake is using too much—because they expand so dramatically, a small handful of dried mushrooms is enough for a family-sized dish
  • Not all wood ear is created equal; thicker, more irregular pieces generally rehydrate to a better texture than thin, uniform slices

Nutrition

32kcal

Energy

134 kJ · per 100 g

Where the calories come from

Protein 16%Carbs 72%Fat 12%

Protein

1.5g

3% DV

Carbs

6.9g

2% DV

Fat

0.5g

1% DV

Fiber

3.8g

14% DV

Sugars

1.2g

of which

Sodium

9mg

0% DV

Notable micronutrients
Vitamin D27% DV
Niacin (B3)26% DV
Iron19% DV
Riboflavin (B2)17% DV
Potassium11% DV
Zinc6% DV

Source · USDA FoodData Central · approx. Mushrooms, Chanterelle, raw

View on FDC →

In the shops

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Good to know

Scientific Name
Auricularia auricula-judae and related Auricularia species
Also Called
Tree Ear, Cloud Ear, Mu Err (Chinese), Kikurage (Japanese), Pey deung-i (Korean), Judas's Ear, Black Fungus
Type
Jelly fungus; rubbery-gelatinous when cooked with subtle crunch
Color (dried)
Dark brown to nearly black; expands and lightens when rehydrated
Rehydration Ratio
10:1 (1 oz dried yields about 1 cup rehydrated)
Rehydration Time
20–30 minutes in warm water; 5–10 minutes in boiling water for faster results
Flavor
Very mild, neutral; acts as a flavor conduit, not a flavor contributor
Key Nutrients
Iron, calcium, dietary fiber, B vitamins; notably high in fiber for a fungus
Shelf Life (dried)
1–2 years in an airtight container in a cool, dry place
Shelf Life (rehydrated)
3–5 days refrigerated in water or a sealed container
Raw Consumption
Not recommended; always cook before eating

Substitutes

  • Cloud Ear / Tree EarInterchangeable; different regional names for the same dried Auricularia
  • Snow Fungus (Tremella fuciformis)Different species; softer and more delicate; good for soups and desserts but too fragile for stir-fries
  • Fresh Shiitake (dried and rehydrated)Provides earthy umami flavor but entirely different soft-meaty texture; not a textural substitute
  • Enoki MushroomsSimilar delicate crunch in brothy dishes; no relation, but functional in soups and porridges

Pairs with

GarlicGingerSoy SauceSesame OilOyster SauceRice VinegarChili Oil / Chili FlakesScallionsBeef and PorkTofu

Also called

木耳 · Black Fungus · Cloud Ear · Mu Er

Appears in these dishes

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