In short: Wood ear is a gelatinous jelly fungus that looks like a dried-up ear when dead, but swells into a springy, crunchy mushroom when soaked in water. It has no real flavour but adds wonderful texture to soups and stir-fries.
What is a wood ear mushroom?
Wood ear is a jelly fungus—one of the fungi that feels squishy and gelatinous, like Gummi bears. Its scientific name is Auricularia auricula, and it grows on rotting wood in forests around the world. It is named "wood ear" because it looks like a tiny ear growing on a branch. Another name is jelly ear fungus, which makes a lot of sense.
When fresh, a wood ear looks like a wavy, ear-shaped or cup-shaped brown thing stuck to dead wood. When it dries out, it becomes hard, brittle, and flat—almost like a leaf. This is important because most wood ear you will buy or find is already dried.
The magic trick: water makes it swell
Here is what makes wood ear so strange and fun: when you soak dried wood ear in warm water for just 15 to 30 minutes, it expands 3-4 times its dried size. It swells up like a sponge, becoming soft, wavy, and jelly-like again. This is why the editorial angle is so good—it is like watching dried raisins become grapes, except the mushroom turns into a springy, wobbly piece of brown jelly.
When it swells, it becomes shiny, smooth, and slippery, with a rubbery, gelatinous texture. It turns from hard and inedible into something ready to cook with. The whole transformation takes less than half an hour.
Why do people eat it?
Wood ear mushrooms have almost no flavour of their own. Unlike a button mushroom or a shiitake, they do not taste like much at all. But here is the clever bit: they absorb the flavours around them. A piece of wood ear in hot and sour soup will soak up the sour and spicy tastes and carry them into every bite.
People also love wood ear for its texture. When cooked, it becomes crunchy and chewy at the same time—a bit rubbery, a bit bouncy. This unusual springiness is hard to get from any other ingredient, which is why it is so popular in Asian cooking, especially in Chinese dishes. You have probably eaten it in hot and sour soup at a restaurant without realising what it was.
Where does it grow?
Wood ear fungi grow on dead, rotting wood. They usually appear in groups on decaying branches and logs, especially on hardwood trees like beech, sycamore, and elder. In the wild, wood ear fruits from May to November, which means you might spot them on a woodland walk in autumn.
However, wood ear is now widely cultivated around the world. Most wood ear sold in shops is grown on purpose, on prepared wood or sawdust, rather than found wild.
Safety first: If you spot a wood ear on a tree in a wood, look at it with your eyes only—do not pick it or eat it. Even though wood ear is edible, wild mushrooms can be risky. Some species look identical to poisonous ones, and it is impossible for beginners to tell them apart. The safe way to eat wood ear is to buy it from a shop or grow it yourself with a kit, always with a grown-up. And remember: always cook mushrooms; never eat them raw.
How to use dried wood ear
If you have a packet of dried wood ear from an Asian food shop, here is how to prepare it:
- Put the dried pieces in a bowl of hot water.
- Wait 15-30 minutes while they swell and soften.
- Trim away the hard stem with scissors (or leave it if it feels tender).
- Slice them into matchsticks or small pieces.
- Add them to soups, stir-fries, or salads toward the end of cooking to keep their bouncy texture.
Tip: throw away the soaking water—it does not add flavour.
The short version
Wood ear is a jelly fungus that looks dried and flat but swells 3-4 times bigger in warm water. It has no strong flavour but adds a springy, crunchy texture to food. It is popular in Asian cooking and is now grown on purpose all over the world.
Curious questions
Is wood ear the same as other jelly mushrooms?
Wood ear (Auricularia auricula) is a jelly fungus, which is a type of fungus that feels gelatinous and wobbly rather than solid. There are other jelly fungi with different names, but wood ear is the most commonly eaten one.
Does wood ear taste like anything?
No. Wood ear has almost no flavour on its own. But it is brilliant at soaking up the tastes of the food around it—the spices in a soup, the sauce in a stir-fry—so it carries flavour into every bite without adding its own.
Is it safe to pick wood ear from trees?
No. Even though wood ear is edible, never pick or eat any wild mushroom without an expert adult. Many poisonous mushrooms look almost identical to safe ones, and it is impossible for beginners to tell them apart. Buy wood ear dried from an Asian shop or use a grow kit.
How much do dried wood ears expand?
When you soak dried wood ear in warm water, it expands 3-4 times its original dried size. A tiny dried piece becomes a large, wobbly jelly mushroom in 15-30 minutes.
Why is it called a wood ear?
Because it grows on wood and looks like a tiny ear stuck to a branch. In fresh form, the shape is clear. When dried, it flattens into a leaf-like disc. Another name is jelly ear fungus, because it feels like jelly.
Sources & further reading
- Missouri Department of Conservation — Wood Ear (Tree Ear)
- University of Wisconsin, Tom Volk’s Fungus of the Month — Auricularia auricula-judae
- Woodland Trust — Jelly Ear (Auricularia auricula-judae)
A note for growers: only grow and eat mushrooms from our kits or from species you know are safe, and always check with an adult. Never eat a wild mushroom unless an expert adult says it’s safe.
