Vanilla is a typical tropical rain forest in a large orchid perfume plant, according to scientific analysis, Vanilla pods contain vanillin (or vanilla essence) and carbon hydrocarbons, alcohols, carboxyl compounds, esters, phenols, acids, phenol ethers and heterocyclic compounds 150-170 kinds of components. Because of its special flavor, it is widely used as flavoring materials for high-grade cigarettes, famous wines, cream, coffee, cocoa, chocolate and other high-grade food. Nowadays, it has become one of the most favorite natural edible spices for consumers all over the world, so it has the reputation of "king of food spices".