Mayonnaise has a wide variety and is one of the basic materials for making western dishes and pastries. There are more and more varieties of mayonnaise, and various semi-solid sauces, salad sauces, emulsified sauces and separated liquid sauces are derived.

Mayonnaise is a kind of seasoning oil, which consists of edible vegetable oil, vinegar, fruit juice, egg yolk, protein, salt, sugar, vanilla, chemical seasoning, sour flavor and other raw materials. Generally, refined salad oil is used instead of hydrogenated oil. The emulsified form is oil-in-water type.