What is a "sugar lump"?

A sugar lump, also known as a sugar cube, is a small block of compressed sugar typically used to sweeten hot beverages like tea and coffee. It is made by pressing granulated sugar into a uniform shape, usually a cube, though other shapes are also common. Sugar lumps dissolve slowly when added to hot liquids, allowing for gradual sweetening of the drink. They are convenient for portion control and can add a decorative touch to serving tea or coffee.