Bring the water to boil in a pot. Chop the lemon grass into half and tear the herbs once. Put all this and the ginger in to the boiling water and turn down the heat to low. Let the teas simmer for 2 to 3 minutes and then turn off the heat. Cover the pot and let the flavours infuse for another couple of minutes.

Strain the tea into four cups. Add honey to sweeten the tea according to taste and serve hot. You can also let it cool and then refrigerate it before serving but it is best drunk hot/ warm.