Do you warmth water, milk and tea within the microwave? Consultants discovered a greater approach – NDTV Meals
Microwave heating may not be uniform.
If you heat liquids like water, milk, and tea in the microwave, you must have noticed a difference from heating them on the stove. Of course, the process is faster and that’s why we choose the microwave over the stove for heating. But you must also have noticed that your glass or container is heating up too, and while the top layer of liquid is hot, the bottom liquid is not as strong. Do you know what that is?
The oven is cooked or heated using the convection method, in which the bottom of the jar is heated and the heat gradually moves upwards to keep the contents warm. While in the microwave the electric field is distributed in the microwave, the convection process is prevented from taking place. What happens is that the container is heated and the heat touches the top layer of the liquid first, with not much heat going to the bottom layer. As a result, the liquid is heated unevenly.
A team of researchers from the University of Electronic Science and Technology in China investigated this uneven heating behavior of the microwave and found a solution to this problem.
“There are two ways to improve the uniformity of microwave heating: one improves the uniformity of the electromagnetic field in the microwave cavity and the other improves the uniformity of absorption of microwave energy in materials,” said Peiyang Zhao, one of the researchers.
The team placed a silver beaker on the liquid-containing glass and due to the good thermal conductivity of the sliver, the temperature moved evenly and the liquid heated up. The results were published in the journal AIP Advances. Whether it is safe to microwave silver with current structures has not yet been proven. But microwave manufacturers can certainly select this notice to modify.
“Because of the good conductivity of silver, we plated a layer of metallic silver on top of the glass as shown in Figure 7 and the mug is placed in the center of the ceramic plate; since the wall of the glass is very thin, the silver-plated one Part of the glass can be viewed as a circular waveguide. Since the cup is in the center of the microwave oven, the distance between the cup and the cavity wall is large and the possibility of ignition is also small. We also simulated the temperature distribution of heated water after we added a metal cover to the glass, “added Peiyang Zhao.