Tricholoma matsutake Tricholoma matsutake is a kind of high-grade edible fungus, which is delicious and nutritious. It contains a substance called ketone compound, which, when combined with protein in ducks, will produce peculiar smell and affect the taste. Tricholoma matsutake and duck can't be stewed together. Of course, in addition to Tricholoma matsutake, mushrooms can be stewed with ducks, such as mushrooms, Flammulina velutipes, Pleurotus eryngii, etc. These mushrooms can increase the flavor of soup and provide rich nutrients for the body.