The glass used in a microwave turntable is not just any ordinary glass; it is designed to meet specific requirements to function safely and efficiently within a microwave oven. There are a couple of key aspects that make the glass of a microwave turntable special:
Heat Resistance: The glass used in microwave turntables needs to withstand high temperatures generated by the microwave's heating elements. It should not crack, shatter, or deform due to the heat produced during the cooking process.
Microwave Transparency: Regular glass may not be transparent to microwaves, which would hinder the even cooking of food. The glass used in microwave turntables is specially formulated to be transparent to microwaves, allowing the microwaves to pass through and cook the food evenly.
Durability: The turntable glass should be durable enough to withstand regular use, including the weight of the food placed on it and the spinning motion as the turntable rotates.
Regarding the 2.45 GHz frequency radiation used in microwave ovens, the glass of the microwave turntable is not specifically designed to "withstand" the radiation. Instead, it is designed to be transparent to these microwaves, allowing them to pass through the glass and penetrate the food placed on the turntable. The microwaves agitate water molecules within the food, generating heat and cooking the food in the process.
It's important to note that while microwave ovens are designed to contain and direct the microwave radiation safely towards the food, the microwave door and glass should be intact and without damage. Damaged or cracked glass could potentially allow microwave radiation to leak out, which poses a safety risk. Regular inspections and maintenance of microwave ovens are essential to ensure their safe operation.