1. Auxiliary effect: The original aroma product has insufficient aroma concentration, so use the flavor that is compatible with its aroma to assist the aroma.
2. Stabilizing effect: The aroma of natural products is affected by seasons, regions, climates, soils, and processing conditions, resulting in unstable aromas. After adding aroma, each batch of products can be kept basically stable.
3. Complementary effect: supplement part of the aroma lost during processing.
4. Flavor correction effect: medicinal flavor
5. Fragrance effect: Some products have no fragrance themselves, and a certain fragrance type can be selected to make the product have a certain fragrance.
6. Substitution: It is difficult to directly use natural products as the fragrance source, and the fragrance is replaced or partially replaced.
