If food sparks and stops working in a microwave, it is generally not recommended to put it back in the microwave. Sparks can occur when metal objects or containers with metallic accents are placed inside a microwave, which can be dangerous and cause damage to the appliance.
When food sparks in a microwave, it indicates the presence of metal or other conductive materials that are not microwave-safe. Metal objects reflect microwaves and can cause electrical arcing, leading to sparks and potentially damaging the microwave. Additionally, metal in the microwave can cause a fire hazard.
If your food sparks in the microwave, you should immediately stop the microwave and remove the food. Inspect the dish or container to ensure there are no metal elements or any other foreign objects that could be causing the sparking. If the container is microwave-safe and free of metal, you can transfer the food to a different microwave-safe dish and continue cooking it.
However, if the sparking is a result of a non-microwave-safe container or the presence of metal, it is best to discard the food and avoid using that particular container in the microwave again. It's important to prioritize safety when using a microwave to prevent damage to the appliance and potential harm to yourself or others.