Which mushrooms can you eat raw

“Can you eat a mushroom raw?” — a question with a short and important answer: almost all mushrooms must be cooked. Eating mushrooms raw isn't a healthy trend, it's a poisoning risk. Let's look at why, which mushrooms are still eaten raw, and why raw-eating is dangerous.

Why almost no mushrooms can be eaten raw

There are several reasons, and all of them serious:

Natural toxins. Many mushrooms contain substances that break down only when heated. For example, honey fungus and other popular species are poisonous raw but perfectly safe cooked.
Cell walls that are hard to digest. Mushroom fiber (chitin) is poorly digested even after cooking, and raw even less so, which is why raw mushrooms cause heaviness and an upset stomach.
Dirt and parasites. Bacteria, soil particles and larvae settle on wild mushrooms. Heat treatment neutralizes all of that.

So the main safety rule is simple: wild mushrooms must be thoroughly boiled or fried.

Which mushrooms are still eaten raw

Only certain mushrooms are eaten raw (and only in small amounts), usually cultivated ones rather than wild:

button mushrooms — young store-bought button mushrooms are sometimes thinly sliced into salads;
truffle — it's added in thin shavings for its aroma;
young porcini — in some cuisines it's thinly shaved into carpaccio.

But even here a caution applies: this only goes for perfectly fresh, definitely edible mushrooms from a reliable source, in small portions. Wild mushrooms “from the basket” are best never eaten raw.

Why eating mushrooms raw is dangerous

Raw wild mushrooms can cause nausea, stomach pain and genuine poisoning — from mild to severe. This is especially risky for children and people with weak digestion. Signs of poisoning and what to do — in the article mushroom poisoning: signs and first aid.

And once more, the key point: taste is not a way to test a mushroom. Don't try unfamiliar raw mushrooms “on the tongue”. Why folk “tests” don't work — in the article myths about identifying poisonous mushrooms.

Sources

“Key to the Fungi of Ukraine” (Kyiv, Naukova Dumka publishing house).
Edible mushroom on Wikipedia.
Mushroom poisoning: signs and first aid.

Frequently asked questions

Which mushrooms can you eat raw?

Mostly cultivated mushrooms are eaten raw, and only in small amounts: young button mushrooms in a salad, truffle in shavings, sometimes young porcini. Wild mushrooms “from the basket” must not be eaten raw.

Why can't you eat raw mushrooms?

Because many mushrooms contain toxins that break down only when heated, and raw mushroom fiber is also hard to digest and carries dirt and larvae. That's why wild mushrooms must be cooked.

Can you eat button mushrooms raw?

Young, perfectly fresh store-bought button mushrooms are sometimes added to salads raw, thinly sliced. But even these are better cooked, and wild Agaricus mushrooms shouldn't be eaten raw.

What does heat treatment destroy in mushrooms?

Boiling and frying neutralize the natural toxins found in many mushrooms, as well as bacteria, soil particles and larvae. That's why cooked mushrooms are safe where raw ones are dangerous.

Is it dangerous to eat a raw wild mushroom?

Yes, it can cause nausea, stomach pain and even genuine poisoning. It's especially risky for children and people with weak digestion. Always cook wild mushrooms.

Can you taste a mushroom to identify it?

No. Taste is not a way to test: a sharp or bitter taste occurs in both edible and poisonous mushrooms. Identify a mushroom by its features, not by trying it raw on your tongue.

Why are raw mushrooms hard on the stomach?

Because their cell walls are made of chitin — a substance the body barely digests. Even cooked mushrooms are on the heavy side, and raw ones leave you feeling heavy and can cause an upset stomach.