It’s hard to imagine a modern kitchen without a refrigerator. This household appliance keeps food perfectly in the cold, extending its shelf life. But not everything can be put in the refrigerator. For example, everyone knows that it is better not to put hot objects there. The rule is known even to children, but it is not entirely clear why this is so. Isn’t the refrigerator designed to cool items, including hot ones? Is the refrigerator capable of breaking down because of this attitude towards it?
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The behavior of the refrigerator after it feels something hot inside itself depends on the principle of its operation. If the No Frost function is the basis, then the fans are engaged in removing moisture from the tank. The sensors record the temperature, if it exceeds the set parameters, then the compressor tries to lower it. But if there is hot dishes in such a refrigerator, then the fan with the compressor will start working in an enhanced mode, removing moisture and lowering the temperature. If in normal mode the compressor works cyclically, then it will have to work with hot dishes without interruption. This is fraught with overheating of this unit itself.
If a drip system is implemented in the device, then the fan does not remove moisture – it settles on the back wall and then flows into the trays. But if you put hot dishes in such a refrigerator, then the condensation will settle much faster, which will lead to overflow of containers. A classic fur coat or icicles will grow much faster, which will prevent the freon from taking heat from the food. The cooling will become less efficient, which again will increase the load on the compressor. And the refrigerator will have to be defrosted more often.
To summarize, you can identify the problem. When there is something hot in the refrigerator, the fan and compressor will start to work hard. Not only will power consumption rise sharply, but parts will also wear out more. Hot dishes will create icicles and frost, which will require more frequent defrosting and cleaning of the appliance.
There is another reason behind the ban on placing hot dishes inside the refrigerator – glass shelves. If you put something hot on them, the following happens. Poor thermal conductivity of glass will lead to rapid heating of the outer surface and its expansion. However, the rest of the shelf will remain unchanged. As a result, the glass can break or crack, even if no obvious changes occur, then microcracks will reduce the strength of the surface. Plastic surfaces can also suffer from heat, and the insulating rubber bands on the door can deform. And in itself, such a temperature difference is undesirable for dishes, it can cause chips and cracks.
The best solution is to pre-cool food to room temperature. If you still need to put something hot in the refrigerator, then at least place a board under it to avoid direct contact with the cold glass. And if such a need arises regularly, then you should pay attention to refrigerators with a Hot Box compartment. This compartment is designed to cool warm items, while the rest of the volume works, rather, to preserve the freshness of products