Blue-Tee Butterfly Pea Flower Tea Traditionally served as a special iced tea to welcome guests in Thailand called Nam Dok Anchan. It is made hot with 1/2 teaspoon honey, 1/2 teaspoon sugar and 1/2 teaspoon lemon juice, allowed to cool & served over ice. When the lemon juice is added it magically changes color from vivid blue to royal purple! If you add more lemon it will turn bright pink. This Thai herbal medicine Butterfly Pea is used for improving memory, circulation & eyesight. The floral extract is also used to color rice, deserts and crepes. This butterfly pea is sourced from a family owned farm in central Thailand where it is lovingly grown using traditional techniques without the use of pesticides or chemicals.