the part of the axe foot can be eaten.

mussels contain many nutrients such as protein, fat, sugar, calcium, phosphorus and iron. When cleaning, use a knife to break it along the seam. The white mussel meat and the black or different color between the guests are the digestive system of mussels. Don't eat it for health. White meat with precise meat quality is edible meat.

The gills of mussels: There are two pieces between the skirt and the mussel meat that are semi-wrapped, crescent-shaped, soft and have gilllike texture inside. To be removed, the intestines: next to the gills, tubular, with black silt inside, one end connected to the mussel body, and cut off. The other end is glued to the cylindrical axe foot, torn off, gently squeezed along the mussel body to the hole where the sausage is cut, and the residual sediment is drained, and then the rest can be eaten.

Extended information:

The food of mussels is mainly unicellular algae, protozoa and organic debris, such as rotifers, flagellates, green eyes, green algae, scenedesmus, navicular algae, dinoflagellate, tetragonal algae, spindle diatom, rod star algae, and so on.

Diatoms are easy to digest. The mussel can't actively chase the food, depending on the opening and closing of the mussel shell, the oscillation of the inner cilia and gill cilia of the mantle causes the water flow, and the food enters the mussel body with the water.

Food enters the mantle cavity with water, and the particles move up along the gill filaments to the base of the gill, and then move forward to the lip. After being selected by the lip, the small particles enter the mouth, while the large particles move backward from the edge of the inner gill, and at the intersection of the two gills, they enter the mantle scar to the back end, and the two shells slam and are discharged from the body.