What is a tea infuser?

A tea infuser is a small device used to brew loose leaf tea. It typically consists of a small metal or mesh ball with a hinge that opens to allow the tea leaves to be inserted inside. The infuser is then placed in a cup or teapot with hot water to steep the tea. Some infusers come with a chain or long handle for easy removal from the cup or pot, while others are designed to sit on the rim of the cup. Tea infusers are a convenient way to enjoy the flavor of loose leaf tea without the need for a traditional teapot or strainer. They are easy to clean and can be used for multiple cups of tea.