You should never put metal objects in a toaster because it can cause a dangerous situation. Toasters are designed to toast bread, and they work by passing an electric current through the nichrome wires inside the toaster slots. These wires heat up and toast the bread.
Metal is an excellent conductor of electricity, and if you were to insert a metal object (such as a knife, fork, spoon, or any metal utensil) into the toaster while it is plugged in or even shortly after being unplugged, it can create a short circuit. This short circuit could lead to a sudden and intense flow of electricity, causing sparks, fires, or damage to the toaster. In the worst-case scenario, it could even result in an electric shock to the person attempting to insert the metal object.
Toasters are meant to toast only bread and similar items with non-metallic properties. If you need to remove something stuck in the toaster, always ensure that the toaster is unplugged first. Use wooden or plastic utensils specifically designed for this purpose, or use non-metallic objects to safely retrieve any items that may have become lodged in the toaster.
Safety should always be a priority when dealing with electrical appliances, and following the manufacturer's guidelines and warnings is essential to prevent accidents and injuries.