A toaster is a small kitchen appliance designed to brown slices of bread by exposing them to heat. It typically has slots where bread is inserted, and when activated, electric coils generate heat to toast the bread to the desired level. Most toasters have adjustable settings that allow users to choose how light or dark they want their toast. Toasters can also accommodate various types of bread, including bagels and English muffins, depending on the model. Some advanced toasters come with additional features, such as a defrost setting for frozen bread or a reheat function for warming previously toasted items.