Using a glass plate or microwave-safe dish to place food inside a microwave oven is recommended for several reasons:
Heat distribution: The glass plate or microwave-safe dish helps to distribute the heat more evenly across the food. The microwave oven's turntable rotates the glass plate, ensuring that the food is exposed to the microwave radiation from all angles. This rotation promotes uniform heating and helps to minimize hot spots.
Protection for the microwave oven: Placing food directly on the hot plate of a microwave oven can potentially cause damage to the oven. The hot plate is not designed to have direct food contact and may not be as resistant to stains, scratches, or food debris. Using a glass plate or microwave-safe dish provides a protective barrier and helps to keep the oven clean.
Safety considerations: Placing food directly on the hot plate can also present safety risks. Some microwave ovens have a non-removable, built-in plate that may be difficult to clean thoroughly. This can lead to the accumulation of bacteria or food particles, which may contaminate the food. Using a removable glass plate or microwave-safe dish makes it easier to clean and maintain proper hygiene.
Regarding electric shock, modern microwave ovens are designed with safety mechanisms to prevent electric shock during normal usage. The hot plate inside the oven is insulated and separated from the electrical components. As long as the oven is used according to the manufacturer's instructions, there should be no risk of electric shock when using a glass plate or microwave-safe dish.
It's important to note that the glass plate or microwave-safe dish used should be labeled as microwave-safe to ensure it can withstand the heat and microwave radiation without breaking or releasing harmful substances. Always follow the manufacturer's guidelines and instructions for safe use of your specific microwave oven.