Wulong or oolong, which the Chinese call blue-green teas in reference to the color of their infused leaves, are semi-fermented teas, halfway between green tea (unfermented) and black tea (fermented). Very mild, low in caffeine, they are light and tender afternoon and evening teas. Very fresh with vegetal notes, they are perfect for quenching your thirst and soothing the tensions of the day.