It is likely to be fake.

Attachment: Ways to identify real and fake crimini mushrooms:

There are many kinds of crimini mushrooms in the market and they are mixed. Some of them are real red mushrooms and some are fake red mushrooms. Fake red mushrooms are usually made of a kind of mushroom called Manzanjiang, and the color of the mushroom is red, so those who don't know how to recognize it think it is a red mushroom, and some of them are spicy or bitter, while some of them are not spicy and bitter, but not sweet, etc. The nutrition of the red mushrooms is different from the red mushrooms.

Shape. A real crimson mushroom has a deep red cap with a dark red center and horizontal wrinkles, fine and uniform pleats on the belly of the cap, pink legs, and a rounded shape (of course, we cannot rule out that the shape of some crimson mushrooms is damaged during growth or harvesting), and the legs and pleats are all red (the pleats of the Manchurian red mushroom are not red, and the legs are red in some places).

The foot. For real crimini mushrooms, the foot must have a small hole, which is unique to crimini mushrooms (shiitake, chashu, and brazilian mushrooms all have solid feet).

Color. Real crimini mushrooms will turn red even when they are in water. Red mushrooms are red because they have their own natural coloring in them, so turning red is a sure thing. It's just that the water of fake crimini mushrooms will be dark red and have the flavor of dye, while the water of real crimini mushrooms will be pink and have the fragrance of mushrooms. After the crimini mushrooms are cooked, the color of the mushrooms will fade away as all the nutrients from the mushrooms are absorbed into the soup. The flavor of crimini mushrooms is in the soup.

The difference between authentic crimini mushrooms and other crimini mushrooms is that authentic crimini mushrooms have a bulge in the center of the cap, a thicker, darker red cap, and an uneven darker red color on the inside of the foot, which is aromatic and has a delicious flavor. The difference between large and small red mushrooms: large red mushrooms are highly nutritious and produced in western Fujian.