First, washing Ya-nang leaves 2-3 times.
Then start to crush the leaves which you can see the water is changing the color to green. Crushing the leaves until the water turned to dark green and the color on the leaves are disappeared.
Yanang juice can be extracted with water by using both hands rubbing on leaves back and forth until all the Chlorophyll in the leaves are out in the water to produce detox drink. This drink is very refreshing, and has a cool property, believing that could heal so many kinds of illness.