Traditional Gunpowder tea dates back as far as the Tang. Gunpowder tea leaves are withered, steamed, rolled, and then dried. Gunpowder teas were at one time the second most expensive tea in London. And for good reason too. Gunpowder tea is very popular and considered one of the finest teas in China. Superior Gunpowder green tea is sought after for its robust freshness, and undertones of oak.This variety of tea got its name because the tightly rolled tea leaves reminded people of gunpowder.