Yellow clams all put into a basin, and then add a little vegetable oil in the water, the part of the water covered by vegetable oil is isolated from the air, the yellow clams in the water will feel the lack of oxygen. It will stick its body out to breathe, and this will achieve the effect of spitting sand. If you want to be clean again, change the water a few more times, add vegetable oil, vegetable oil is suitable, don't add too much. Otherwise they won't be able to breathe in there and will easily suffocate.

Clams have significant effects and functions, can be used as human nutritional green food, not only can remove toxins and excess water in the body, but also promote blood and water metabolism, which has a diuretic, anti-edema effect. It can be used to treat generalized edema, dysuria, lumbago, cold limbs, fear of cold, edema of kidney yang deficiency and so on. In addition, long-term consumption of yellow clams can improve the quality of semen and enhance sperm vitality, and is suitable for the treatment of impotence due to kidney yang deficiency, lumbago, frequent urination and supplementing the deficiency of Qi of the five organs and men's sexual dysfunction, spermatorrhea, impotence and other disorders.