Herbal constituents can be released into and stored in various solutions such as water, oil, vinegar and alcohol. Some liquids (called menstruums in herbal medicine making) facilitate the release of different compounds and can be more or less effective depending on the plant and it's properties. Below are several different techniques for extracting herbs with water from Ceara Foley's class at the 2016 Herbal Conference.
Standard Water Infusions
Appropriate for leaves, flowers, green stems and fresh berries where the substances wanted are easily released into the water.
Make tea in a ceramic, glass, or enamel vessel.
Use 1 tsp. dried herb (or 3 tsp. fresh) per 1 cup of water, or 1 oz. herb per pint of water.
Place herb in vessel and pour boiling water over.
Cover. Steep 15 minutes then strain while hot.
It is best to make infusions as needed due to a very short shelf life. Drink 1 cup 3 times daily.