This extraction method, otherwise known as tea, is used for the harder parts of dried plants such as: roots, rhizomes, bark, and berries.
Simmer the plant in water over low heat for 30-40 minutes, or longer for a stronger tea.
Guideline for amount of herbals for infusion or decoctions:
Typically use more if it is fresh, 1-2 Tablespoons per cup of water
For dried, use 1-2 teaspoons per cup of water
More or less adjusted for taste and desired strength