2, Crush the mint leaves, put the crushed leaves in a glass jar and pack them there until the jar is full.

3, Cover all the leaves in the jar with olive oil until neck level.

4. Let the olive oil soak, if you live in a warm place, in the sun for 2 days and then shake the glass jar every 12 hours. If it's winter, place the wide-mouth bottle in a cupboard and let it soak for 1 month.

5. After soaking, filter the oil through a double folded coarse cotton cloth or a fine strainer.

6. Store peppermint essential oil in a dark, dry, warm place for 3 to 6 months.