How an herb is prepared is just as important as the herb itself. Traditional systems distinguish between infusions, decoctions, powders, and external preparations based on plant material.
Leaves and flowers are often steeped gently, while dense roots and barks require longer simmering. Resins and minerals may require specialized handling or are not prepared as teas at all.
Using the wrong preparation method can alter flavor, aroma, and traditional function. This is why preparation guidance is commonly included with whole herbs.