method 1 Remove the okra flower fresh or dry wash clean, put the pot and boiled, then lower the heat the fire enough simmer until the water is red and concentrated .
method 2 get up from Rosella flower pot of boiling water. Then take the syrup and the salt to put down. Let the spurs boiling 1 minutes to taste like.
method 3 put the empty bottle cleaning in boiling water 20 minutes. The source red fill out and cork it tightly in the fridge and stored for a long time. But one way or another... The Rosella dried and ground into a powder.