Can The Carton Fit in The Microwave?

This may seem like a simple question, but it may actually require a deeper understanding. Before answering this question, let's take a look at how microwave ovens work and how cartons react in them.
A microwave oven is an electrical appliance that uses microwaves to heat objects. Microwave ovens cook food by creating microwaves inside the oven and propagating them inside the food. Microwaves are characterized by high-frequency electromagnetic waves with shorter wavelengths than visible light and able to pass through many substances, such as glass and plastic. When microwaves irradiate food, it is absorbed and vibrates water molecules, creating thermal energy. This is how microwaves heat food
So can the carton withstand the high-frequency microwave waves generated by microwave ovens? The answer depends on the material used to manufacture the carton. Some cartons are made of pure cotton, while others may contain some metal foil, which reacts differently to microwaves.
First of all, if a carton is made of pure natural fibers such as high-quality toilet paper, toilet paper, napkins, then such a carton can be heated in the microwave. This is because these paper products do not contain metal foil and have a high moisture content, which can absorb the energy of microwaves to generate heat energy. Natural materials do not cause combustion or release toxic gases, so it is safe to use such cartons in microwave ovens.
On the other hand, if the carton contains metal foil or other metallic materials, you should immediately stop powering it on. This is because metals are able to reflect microwaves and cause fires. The opacity of the metal foil can also cause microwaves to reflect inside the microwave oven, causing electrical discharge and possibly causing fire. Therefore, for safety, never heat a carton coated with metal foil in a microwave.
In fact, some paper products even come with plugged plastic covers. Unlike cartons, plastics may release toxic gases when heated in microwave ovens, which can contaminate food and negatively affect human health. So, if you want to heat food in the microwave, you must first remove it from the plug plastic lid.
Of course, a better option is to avoid using paper boxes in the microwave. For food that needs to be heated, it is best to keep it in ceramic or glassware. These materials do not react in any way with food and do not produce toxic gases.