Not all containers/bowls support microwave oven heat. Some of them like melamine, plastic, and others may damage or get break easily. So, use containers that are suitable to keep inside the microwave oven like ceramic, glass, or microwave oven safe utensils.
Do not keep plastic appliances inside the oven when you set too high/medium power mode.
Cover the food with a paper or wrap to retain the moisture and support even heat distribution.
The temperature of the microwave should be 4˚-60˚C for reheating and cooking.
If you set the cooking mode to high power, then you should set the timer for only fewer min. Otherwise, the Dish gets spoiled easily.
Never heat packaged food directly in microwave. Place the packaged contents in a container and heat them accordingly.
Clean the microwave oven regularly to avoid bad smell and fungal contamination. I am using a soft dry/wet cloth for it. Avoid using steel wool, scorching pads, or other abrasive cleaning items, as it can damage the interiors.
Do not put a newspaper, dry cloth, and other paper products in the microwave oven for heating, as it can lead to injuries and fire.
Read the instructions, safety tips, warning labels, and precautions carefully.