I've found the answer to these 2 mysterious mint plant.
薄荷1: Peppermint has a high menthol content, and is often used as a flavouring in tea, ice cream, confectionery, chewing gum, and toothpaste.
薄荷2:spearmint. Spearmint leaves can be used whole, chopped, dried and ground, frozen, preserved in salt, sugar, sugar syrup, alcohol, oil, or dried. Spearmint is an ingredient in several mixed drinks, such as the mojito and mint julep. |