This depends on the usage.If it is for dispelling cold, I suggest usinggingerrind off because ginger itself has a very warming nature, while the rind is cool and slightly cold.Peel it and cut into thin strips or small pieces, then put them in a pot with water and cook. The amount depends on personal preference.Boil for five minutes, pour it into a bowl, add some red sugar; it warms up well and tastes good, enhancing the effect.