The purpose of the gong dao bei is to ensure that the tea is brewed evenly and with consistent strength. It is used to pour the first infusion of tea from the teapot or gaiwan into the pitcher, and then poured into individual cups for each guest. This helps to distribute the tea evenly among the guests, ensuring that each cup is of the same strength and flavor.
In addition to its functional purpose, the gong dao bei is also appreciated for its aesthetic qualities. It is often decorated with intricate designs and patterns, and can be a beautiful addition to a tea ceremony or tea collection.
Overall, the gong dao bei is an important part of the traditional Chinese tea culture, and is used by tea enthusiasts around the world to prepare and serve tea in the gongfu style