Tomato sauce is fresh tomato sauce, concentrated products. Show bright red bean paste, tomato characteristic flavor and odor, is a kind of distinctive condiments, generally does not directly entrance. Red tomato ketchup from mature after crushing, beating, remove skin and seed after hard material, the enrichment, canning and sterilization. Tomato sauce, such as fish, meat and commonly used as a food cooking ingredients, were fresh, grace, adding acid, help YuXiang flavorings. Tomato sauce, is an important form Hong Kong cantonese flavor characteristics of the flavor content.