Fresh osmanthus will dry up and lose its fragrance overnight, and it may be bitter when used directly as tea or seasoning. Therefore, it is best to make fresh osmanthus fragrans into osmanthus fragrans or dried osmanthus fragrans to extend the shelf life and then use it for other purposes.

The production method of dried osmanthus fragrans is relatively simple. Put osmanthus in the microwave oven and bake it for 5 minutes on medium heat. Take it out, cool it, put it in a microwave oven and bake it for 5 minutes on medium heat. The dried osmanthus fragrans can be preserved in a dry environment for 2-3 years. Remember not to expose osmanthus in the sun, which is easy to volatilize fragrance. Another method is to mix fresh osmanthus into lard or Jinlong fish oil, so that it will have osmanthus fragrance when cooking, which can generally be stored for 1-2 years.