Matcha, a powder made from green tea leaves, is traditionally whisked into hot water in Japanese tea ceremonies meant to promote contemplation. But today, it is used in smoothies, lattes, bubble teas, baked goods and ice cream in noisy coffeeshops and cafes.

It has been popular in the U.S. since the mid-2010s but its star has risen sharply in recent years, as younger generations seek the health benefits associated with the antioxidant-rich beverage. It is reputed to give a gentler energy boost than coffee (matcha can have significantly less caffeine) and to aid focus.

The best-quality tea is thought to be grown in certain regions in Japan, though other countries, such as China and Vietnam, also cultivate matcha. Because there is a limited supply, especially of superior grades, demand has

See Full Page