Butterfly pea flower tea, commonly known as blue tea, is a caffeine-free herbal tea, or tisane, beverage made from a decoction or infusion of the flower petals or whole flower of the Clitoria ternatea plant.
In Thailand and Vietnam the butterfly blue pea flower tea is commonly mixed with honey and lemon for a drink usually served after dinner, or a refreshment at hotels and spas, a preparation called nam dok anchan in Thai.
The tea is found in both hot and cold varieties, where the cold version is often mixed with honey, mint, cinnamon, passion fruit, and ginger.
Herbs and Substances