Peppermint is easy to grow and the potent oil from the plant has many uses, including cooking and aromatherapy. While extracting oils from a plant can seem like a heavy scientific process, in reality, extracting oil from your peppermint plants requires little specialized equipment, just some patience. Once the oil is extracted it can be stored with a carrier oil to create the base oil for other projects.
Wash the peppermint leaves well and pat dry with a towel. Discard any bruised or wilted leaves.
Pack the leaves into a sealable fruit or canning jar. The leaves can be packed as tightly as you wish.
Pour vodka over the leaves until the jar is full and seal the jar tightly.
Place the jar in a warm area for two weeks to two months, allowing the peppermint leaves to steep in the vodka.
Strain off the liquid through cheesecloth and place in a freezer-proof container, then freeze. The oil will separate from the vodka liquid, allowing you to remove it neatly. Store in a dark bottle away from sunlight.