This age-old method of herbal extraction is easy to execute.
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Mince fresh mint leaves with a knife. The finer the leaves are chopped, the more surface area will be available for oil extraction.
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Place the chopped leaves into a glass mason jar. Fill the jar with three parts of a high-proof alcohol such as grain alcohol or vodka for every one part minced leaves.The alcohol will act as an agent to pull the oils out of the mint.
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Cap the jar and shake well. Leave the container of herbs to sit in a dark place for the next four to six weeks. Shake the jar to stir up its contents every few days.
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After the mint has soaked for four to six weeks, separate the plant material from the liquid by pouring the mixture into a clean bowl through a sieve or strainer. Wrap the soaked leaves in a piece of fine cheesecloth and squeeze out any captured extract.
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Store the mint extract in small glass bottles or jars in a cool dark place.
