Here are sacks of tea products separated according to quality and ready for shipment to the tea auction market. Buying companies mix teas according to their own formulas, perhaps adding perfumes and other substances to create consumer products. The smallest pieces ("dust") will be put into "tea bags" for consumers who want an instant brew. "Green tea" comes from the same leaves but is processed differently. "Herbal tea" does not use leaves from tea bushes but contains leaves and flowers from other plants.