Types of Tea in Russia
Although it is common to stock several types of tea, for example, green, herbal, and black, most Russian people drink exclusively black tea and leave the other types for their guests. A lot of the tea sold in Russia comes from China and India and is sold loose-leaf. Common types of tea are an Oolong blend known as "Russian Caravan" and Keemun teas. Russian supermarkets also stock tea in tea bags, including American brands like Tetley and Red Rose; however, these better-known brands can be up to three times as expensive as Russian brands.

https://www.tripsavvy.com/russian-teatime-traditions-1622500