A toaster is a small appliance designed to toast multiple types of bread products. Invented in Scotland in 1893 and continually developed since then, the most common household toasting appliances are now the pop-up toaster and the toaster oven.Pop-up toasters make toast from bread in 1 to 3 minutes by using heat elements. Since the 2000s, pop-up toasters with wider slots have been manufactured, enabling these toasters to toast bagels cut in half.