How do you make Thai iced tea?

Main ingredient for Thai iced tea is Tea leaf made from tea plant that grown in Thailand. Thai tea leaf are sold in form of tea powder and usually added with orange food coloring. Thai tea leaf with food color added is considered to be a lower grade tea leaf and can be found in most Asian grocery stores, under the name of Thai tea leaf. A better quality Thai tea leaf is the one without our added food color and are not usually sell in Asian grocery stores and they are sold under the name of " Premium Thai tea leaf "