If you accidentally microwaved your food with a metal fork for 2 minutes and there were no sparks or burning, it is possible that no immediate damage occurred to the microwave or the food. However, using metal objects in a microwave is generally not safe and can be hazardous for several reasons:
Fire hazard: While you didn't see any sparks or burning this time, using metal objects in a microwave can potentially cause fires. The metal can reflect microwaves, leading to the generation of electrical currents that can cause arcing and sparks.
Microwave damage: Microwaving metal objects can damage the microwave's interior, such as the metal walls or the microwave's waveguide. This damage might not be immediately visible, but it can affect the microwave's performance over time.
Health risks: When metal is heated in a microwave, it can become extremely hot. If you were to touch or handle the metal fork after microwaving, you could burn yourself.
If there were no sparks or damage to the microwave or fork, and you didn't experience any unusual taste or texture in your food, it's possible that no harm was done this time. However, it's crucial to avoid repeating this mistake in the future. Microwaves are designed to heat food safely when used properly, so it's best to follow the manufacturer's guidelines and avoid putting any metal objects inside the microwave.