When answering this question, most people are guided by the laws of physics. It looks like this: warm air is lighter than cold air, therefore the coolest place will be at the bottom. Accordingly, it will be warmer at the top.
But in fact, it is more complicated, the temperatures are distributed inside the chambers depending on the type of construction. Usually, the units are of two chambers or just one chamber. Having managed to properly distribute all the products on the shelves, you can preserve the taste for a long time, and prolong the state of freshness. We propose to understand the design subtleties of each of them separately and find out for sure where the refrigerator is colder.
Single-chamber refrigerating units
Single-chamber refrigerator design
The freezer compartment is located on top. Cold air generated in the evaporator does not contradict the laws of physics and goes downward.
Complete air circulation suffers to some extent from the obstacle in the form of foods standing on the shelves. Of no small importance is also what material was used for manufacturing. Will they be solid glass, plastic, or metal lattices? So, the air masses can move freely only between the top shelf and the freezer compartment.
You can consider such a design technically outdated, but it remains effective and able to maintain the necessary temperature for both freezing and further storage.
For your information! On modern models of single-chamber units, special latches are installed, which are located in the pan directly in the freezer compartment. This makes it possible to additionally cool the products that are in the refrigerator chamber, the degree of which depends directly on the position.
Which shelves are the coldest in the single-chamber refrigerators
The coldest place is located under the freezer. The degree of cooling between the next two shelves will be lower than the previous level. And further, everything happens similarly the lower the zone, the warmer.
Therefore, it turns out that the highest temperature is at the bottom. With single-chamber units, this feature is considered conditional, since there are still a number several factors that affect the redistribution of temperature. The material used to create the shelves, the zoning of the refrigerating chamber, and even the shape of the products and packaging play an important role here.
Two-chamber cooling units
Design features of the refrigerator with two chambers
Refrigeration units with two chambers have completely different devices, so the internal temperature is not affected by the location of the freezer in any way. Especially since it can be located both at the bottom and quietly at the top of the unit, divided by a large partition.
The main feature of the two-chamber refrigerator is the possession of its evaporator in each compartment. In addition, small fans are attached to the rear wall, so the cold air is distributed evenly inside the chambers. For this purpose, the so-called forced convection system was created.
Technology with the name “no frost” does not allow the freezer to be covered with ice even during prolonged operation. In addition, it helps to prevent food from dehydrating quickly.
For your information! A very important factor is the individuality of such a design. Absolutely precisely located the holes through which the cold air is exhausted, correctly calculated their number and the required power of fans.
Which shelves are the coldest in two-chamber refrigerators?
Undoubtedly, the coldest is in the freezer compartment itself. On the door in the baskets, the temperature readings are always slightly higher. Inside the refrigerator, the bottom part will be the coldest, as well as near the evaporator holes.
A large drawer is usually located in this area. In which fish, as well as meat, is stored. A little higher up is the fruit and vegetable area, with an acceptable temperature of about 4 degrees.
It turns out that the warmest space is at the very top. This also applies to the door, where the temperature is 8 degrees.
Do not neglect to study the manufacturers’ instructions. It contains information about the cooling modes of each refrigerator shelf. If the equipment is working properly, the data will never lose relevance. But probably after 5 years of exploitation, due to the slow evaporation of freon, the modes will change towards the rise of degrees.
That is why you will have to distribute products more attentively.
Recommendations worth listening to:
- Meat is cut into bite-sized portions and placed in cellophane bags before being sent to the freezer.
- Eggs are usually stored on the door, but you need to give up this habit and place them in a container on the bottom cool shelf.
- In the same place, but closer to the back wall, find a place and dairy products that require a low temperature.
- Vegetables should preferably be placed separately in special containers that close hermetically. The lid on them contributes to the preservation of moisture.
- Fruits, on the contrary, do not like moisture, for they are prepared with special cells at the bottom.
- Potatoes and tomatoes will be fine at room temperature.
- The upper compartment can be adapted for storing cooked food.
- It would not be bad to carefully study the factory label, where there are tips on how best to distribute the products on the shelves.
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