Wash all the dried Chinese herb ingredients. Thinly slice the ginger as it helps to release more flavour. When you buy the Dang Shen from the Chinese Medical Hall, ask them to cut the root into 1-inch pieces if possible.
Pour 1 1/2 litre of water into a medium pot or saucepan. Add all the ingredients. Bring to a boil and then lower the heat to simmer. Cover and let it simmer for about 1 hour. Dang Shen tea needs to be served warm.