Yes, a toaster does use radiation, but it's important to clarify what type of radiation is involved.
A toaster primarily uses infrared radiation to heat and toast bread or other food items. Infrared radiation is a form of electromagnetic radiation that falls within the non-ionizing part of the electromagnetic spectrum. It emits heat that toasts or cooks the food by directly heating its surface.
This is different from the harmful ionizing radiation, such as X-rays or gamma rays, which can cause damage to living cells and should not be confused with the infrared radiation used in common household appliances like toasters. Infrared radiation is generally safe for heating purposes and is commonly used in various cooking appliances.