Glass food storage boxes are often used in microwave ovens and ovens to heat or bake food because of their transparency and hygiene. However, their temperature range has a crucial impact on safety.
First of all, different types of glass food storage boxes have different temperature ranges. Common ones are high borosilicate glass and ordinary glass. High borosilicate glass has good thermal stability and can withstand large temperature changes. It can generally withstand a temperature range of -20℃ to 300℃ or even higher. The temperature resistance of ordinary glass is relatively poor, and it can usually only withstand small temperature fluctuations, generally around -10℃ to 100℃.
For microwave oven safety, the temperature range of the glass food storage box affects whether it will break due to temperature changes. Microwave heating uses microwaves to make the molecules in the food move and generate heat. The glass itself does not directly absorb microwave energy, but the temperature in the glass box may rise rapidly during food heating. If the lower temperature limit of the glass food storage box is too low, it may break due to the rapid temperature change if it is directly placed in a microwave oven after being taken out of a low temperature environment (such as a refrigerator) for heating. For example, if an ordinary glass storage box is taken out of the refrigerator (about 4°C) and immediately put into the microwave oven, it is easy to crack or even break due to its inability to withstand the rapid transition from low temperature to high temperature, which not only damages the storage box, but also may cause food to spill and even cause microwave oven failure. However, due to its wide temperature resistance range, high borosilicate glass storage boxes can better adapt to such temperature changes, reduce the risk of cracking, and ensure the safety of microwave oven use.
When used in an oven, the temperature resistance range of the glass food storage box is also critical. The oven heats food by radiating heat from the heating tube. The internal temperature of the oven can be as high as 100°C or above, and even 200°C - 300°C when baking certain foods. If the upper temperature resistance limit of the glass food storage box is insufficient, it may soften, deform or even break in a high temperature environment. For example, when an ordinary glass storage box is heated in an oven to above 150°C, the glass may gradually soften and fail to maintain its original shape, causing food to spill. At the same time, the softened glass may also adhere to the internal parts of the oven, causing damage to the oven. The high borosilicate glass storage box can withstand the high temperature in the oven, and is not prone to softening and deformation, ensuring the safety of use in the oven.
In addition, the temperature range of the glass food storage box is also related to thermal expansion and contraction. During the heating process of a microwave oven or oven, the glass will expand due to the increase in temperature. If the temperature range is unreasonable, excessive expansion of the glass may cause problems with the box cover or other parts, resulting in sealing failure. For example, when the glass storage box expands excessively at high temperatures, the box cover may not be properly closed, and the juice of the food may overflow during the heating process, which not only affects cleaning, but also may cause safety hazards.
At the same time, the temperature range also affects the service life of the glass food storage box. If it is used at the edge of its temperature range or beyond the range for a long time, even if the glass is not broken or deformed at the time, the internal structure of the glass will gradually be damaged, reducing its strength and stability. In the long run, the glass storage box is more prone to cracks and breakage, increasing the safety risk during use.
The temperature range of the glass food storage box has many effects on the safety of use in microwave ovens and ovens. When choosing a glass food storage box, you should choose a product with a suitable temperature resistance range based on the usage scenario and needs to ensure that the glass storage box can be used safely and stably during the heating process, ensuring the safety of the user and the normal operation of the equipment.
