### Butterfly-Pea Tea
น้ำอัญชัน
Thailand — This electric-blue tea performs a literal science magic trick in your cup, instantly shifting to bright pink!
At first, this striking, electric cobalt-blue tea tastes incredibly gentle, earthy, and woody—similar to a light green tea with zero caffeine. But squeeze a wedge of fresh lime into your cup, and it instantly swirls into a brilliant, glowing magenta right before your eyes!
How It's Made
The tea is brewed by steeping the sun-dried blue blossoms of the Clitoria ternatea vine in hot water, which instantly releases a natural pigment called anthocyanin. Because this pigment acts as a natural pH indicator, introducing an acid like lemon juice drops the pH and alters the molecules to reflect bright pink and purple light.
The Story
The butterfly pea plant has grown wild across the tropics of Southeast Asia for centuries. Long before it was an internet sensation, locals brilliantly utilized the bright blossoms in both cooking and medicine. Traditional chefs extracted the vivid blue dye to naturally color sticky rice and sweet desserts. Meanwhile, ancient Ayurvedic and traditional Thai healers celebrated the flower as a "brain herb," brewing it into a daily tonic believed to sharpen memory, soothe anxiety, and even improve eyesight.