Shihua is a kind of natural algae from the sea, repeatedly exposed to the sun and then add water to boil the juice, so Qingdao cold noodles is the main ingredient of edible fiber and seaweed polysaccharide, can lower blood pressure, lowering blood sugar, is a kind of health food; Qingdao cold noodles cold nature, can be cool, cool and diarrhea, so it is a cool snack for the summer heat; some people say that Qingdao cold noodles can also absorb the body's lead and mercury and other harmful elements, collection of lungs, phlegm, detoxification and skin care effects. The effect of detoxification and skin care.