(1) According to the purpose of
flavor:
Flavors can be divided into three categories: daily flavors, edible
flavors and flavors for other purposes.
(2) According to the aroma or fragrance of the essence:
Fragrance, sandalwood, jasmine, rose, grass fragrance for soap.
Three flowers, bell flowers, sweet-scented osmanthus, fruit
flavors for creams.
Aldehyde, floral, green, floral, oriental, etc. used in perfumes.
Edible oranges, sweet oranges, lemons, cream, vanilla, chocolate, almonds, cola type, etc.
Mint type, spearmint type, fruit type, wintergreen type, etc. for toothpaste.
Green plum, rose, sweet-scented osmanthus, daqu, brandy, whiskey, etc. for wine.
Flue-cured tobacco, mixed tobacco, etc. used for tobacco.
(3) According to the solubility properties: it can be divided into two types: water-soluble (including alcohol-soluble) and oil-soluble.
(4) According to the dosage form: Divided into liquid (including paste, milk), solid (including powder, block) and other types.