Comparison Liebherr CU 3331 white vs Samsung RB31FSRNDWW white

The total capacity of the refrigerator is the total capacity of all the main working chambers: refrigerating, freezing, zero, and wine chambers. The set of these chambers, of course, will be different in different models (see more about them above). Here we note that large volumes, on the one hand, simplify the storage of numerous products and, on the other hand, affect the dimensions and price of the unit. It is also worth considering that refrigerators of the same total capacity may differ in the capacity of individual chambers.

Inverter compressors are called compressors that can smoothly change the power of work.

The compressor is a pump that pumps freon through the cooling circuits of the refrigerator. A conventional (non-inverter) compressor has only one power level, and the cooling intensity changes due to periodic switching on and off: the longer the time of continuous operation and the fewer interruptions in operation, the stronger the cooling, and vice versa. Such a design is inexpensive, but it has several disadvantages — in particular, uneven cooling, relatively low temperature control accuracy, and a tendency to create power surges in the network where the refrigerator is connected. Inverter compressors run continuously, while the pump power varies depending on current needs. Thanks to this, refrigerators with compressors of this type are free from the described disadvantages and have some other advantages, such as low noise level and energy efficiency. On the other hand, such units are quite expensive.

The No Frost function prevents the formation of frost inside the refrigerator. The general principle of its operation is that excess moisture is blown out of the working chamber by a special fan, not having time to settle on the walls and form frost.

This function is most relevant for the freezer, although it is technically easy to provide in the refrigerator. Therefore, refrigerators with No Frost in all compartments are the most popular nowadays, much less often this system is installed only in the freezer, and extremely rarely — only in the refrigerator (usually in such models there is no freezer at all).

The No Frost function significantly simplifies the user's life. It eliminates the need to manually defrost the refrigerator and even eliminates the need for automatic defrosting systems (see "Features"). The reverse side of this convenience is that such systems absorb moisture not only from the air but from the food inside too. So for long-term storage, the contents must be tightly packed — otherwise, it dries quickly. In addition, the presence of No Frost inevitably increases the overall cost of the fridge. So if these moments are critical for you, the fridges without No Frost may well be the best choice.

Various special features provided in the refrigerator, such as holiday mode, control via smartphone, child lock, ( LED display or TFT display), door alarm reversible door. And now in more detail:

— Holiday mode. A special mode of operation in case of a long absence of users — when there is no foodstuff in the refrigerating chamber and there is no need for the unit to work intensively. In holiday mode, the temperature inside is maintained at about 12 °C; this prevents the growth of mould and unpleasant odours, while the energy consumption is very low.

— Control via smartphone. The ability of access to control the refrigerator via the Internet. The refrigerator, usually, is connected to the World Wide Web using Wi-Fi — via a router or a smart home system. The convenience of this function is obvious: it allows you to control the operation of the unit from anywhere in the world where there is an Internet connection. However, the specific implementation of such control may be different: some models of refrigerators use an application installed on a smartphone or tablet, and others allow you to work through a web page available in any browser. However, the user can thus obtain various data on the unit's operating mode (temperatur...e and humidity in the chambers, the use of special functions, malfunctions and emergencies, etc.) and, if necessary, change its settings.

— Child lock. Various features to keep your refrigerator safe from small children. Often, it means blocking the control panel — so that a curious baby cannot change the settings.

— Display. Refrigerators of any level can be equipped with displays — from the simplest to the most advanced. Anyway, the screen provides additional convenience in operation: it can display various detailed information about the operation of the unit, as well as other useful data (for example, time). But the specific type of display may be different.
— LED display. Usually, they are very simple — they display one colour (maximum two or three basic colours) and a limited set of characters (numbers, individual letters and some special icons). However, such limited functionality is enough even for fairly advanced refrigerators, and LED displays are inexpensive.
— TFT display. These are already the most functional screens — like those used in smartphones, tablets, etc. They are capable to display a huge variety of information and can even be made touch-sensitive. And some units with TFT displays are not just refrigerators at all but multifunctional smart home components. However, such an appliance costs accordingly.

— Door alarm. An alarm system that warns that the refrigerator door is open for a long time (or not closed tightly enough). After some time after opening, such a system gives a signal (usually sound), notifying the user of the need to check the status of the door. It avoids a critical increase in temperature in the refrigerator chamber and damage to the contents. In some models, this system is also complemented by a light indicator that confirms the correct closing of the door — this further reduces the risk of leaving the refrigerator loosely closed.

— Reversible door. The ability to choose from which side the hinges on the refrigerator door will be located and, accordingly, in which direction it will open. It allows you to optimize the space in the kitchen, providing access to the contents of the unit from the most convenient side. Please note that this function is only available for classic design models, including display refrigerators (see “Product type”). In Side-by-Side and French Door refrigerators it makes no sense to provide this feature.

The number of shelves supplied with the refrigerator. In this case, only shelves placed inside the main (refrigeration) chamber are taken into account. And closed drawers, which are usually at the bottom, are not considered shelves.

In general, this amount depends on the volume: the more spacious the refrigeration compartment, the more shelves are usually provided in the kit. At the same time, there is no strict dependence here, and refrigerators of similar capacity can be equipped with a different number of shelves. As for specific options, the most modest models come with 1 – 2 shelves, 3 shelves and 4 shelves can be called an average, and more are found in some units.

In most modern refrigerators the shelves are removable. In addition, they can be installed at different levels. In this case, it is not necessary to use the entire set: for example, if it is planned to place tall objects inside, one of the shelves can be removed, creating a vast space. And vice versa: if necessary, you can, usually, buy additional shelves. So the number of shelves in the kit only allows you to evaluate the overall possibilities for organizing space in the refrigerator. How to use these features depends on the user.

Separate zones that help expand your food storage options. Among these there are multizone — , fresh zone, humidity zone, low temperature zone, wine chamber, bottle rack. More details about them:

— Fresh zone. A special compartment designed for long-term storage of fresh vegetables, herbs and other similar food. Such a compartment can be made in the form of a completely separate chamber. In such cases, it is called the zero chamber and its volume is separately indicated in the specifications. However, more often the fresh zone is located inside the main compartment. Anyway, the humidity in this zone is somewhat higher than in the refrigeration compartment, and the temperature is somewhat lower: in some models, it is about zero (which allows you to store raw meat or fish), in others it is about +1 .. .3 °C (this is only suitable for fruits, vegetables and cheeses). Anyway, the moisture from the products in the fresh zone does not evaporate as quickly as in the main chamber, and the contents retain their original appearance and taste longer. This feature is especially useful if there is a No Frost system (see above) in the refrigeration chamber of the unit.

— Humidity zone. Another feature designed for long-term storage of fresh food is similar to the fres...h zone described above. The difference is that freshness is preserved solely due to the increased humidity of the air (hence the name). The temperature corresponds to the temperature in the refrigeration chamber. The humidity zone is intended mainly for storing vegetables and fruits; in some refrigerators, this compartment has a humidity control that allows you to optimally adjust it to different types of contents (detailed recommendations on this can be found in special sources)

— Low temperature zone. A compartment in which a lower temperature is maintained than in the main chamber of the refrigerator. Typically, fresh meat or fish are supposed to be stored in the low-temperature compartment. The presence of such a compartment allows you to more effectively organize long-term storage of food in the refrigerator and keep it fresh longer.

— Multizone. A compartment that combines the functions of several compartments at once. The simplest option is the ability to work in the mode of a refrigerator or freezer. However, in modern refrigerators, there are multizones with more extensive capabilities. These features can be quite specific — like quickly cooling drinks, slow defrosting, and even cooling hot dishes. So the specific features of the multizone should be specified separately. Nevertheless, its presence significantly expands the capabilities of the refrigerator. Also, in some models, the entire freezer performs the function of such a chamber. However, most often the multizone is still designed separately from other chambers.

— Wine chamber. Specialized compartment for long-term storage of wine. Usually, a temperature of +10..12 °С is maintained in such a compartment — it is this temperature considered optimal for this task. Some models may also provide the possibility of more precise temperature settings — for different types of wine. The traditional equipment of a wine chamber includes a shock-absorbing system that dampens vibrations from the compressor and other shocks, as well as carbon filters to protect against foreign odours; and the door of such a chamber is traditionally made transparent — so that you can see the collection of wines without opening the refrigerator.
Nowadays, this function is found only in some premium refrigerators. It is because most wine connoisseurs prefer to use specialized wine coolers: such devices are less bulky and often more functional.
— Bottle rack. Shelf of a special design for the convenience of storing bottles in the refrigerator. It has the form of stands of a wavy shape. In the recesses of such "waves" it is convenient to keep bottles of small or medium size: they do not roll over the refrigerator and are at hand; you just need to open the door.

This function means that there is a built-in fan that circulates air around the refrigerator compartment. It contributes to the evenest distribution of cold and more efficient cooling than in units without a fan, where the air moves only due to natural convection. The main disadvantages of dynamic air cooling are the increase in noise level, energy consumption and the cost of the refrigerator.

The capacity of the freezer installed in the refrigerator. Such a chamber is designed to store products at temperatures well below zero (on average -18 °C). Its capacity is related to the total capacity of the refrigerator (and the capacity of the main, refrigerating chamber). However, there is no strict dependence here — models with a similar volume of the refrigerating chamber can be equipped with freezers of different sizes.

When choosing by capacity, it is worth considering how much frozen food you plan to store at a time. Note that it is undesirable to fill the freezer completely — this negatively affects the efficiency of work. However, if this chamber is planned to be used only occasionally, and you do not plan to keep numerous products in it, you can not chase after the capacity: for such cases, 25 – 50 liters, or even smaller capacities, are enough. In the smallest modern refrigerators, the freezer capacity does not exceed 10 liters. And vice versa, very roomy freezers come across — for 176 – 200 liters and even more. Such volumes are typical mainly for side-by-side and French door units (see "Product type"). However, they are also found in models of the classic two-chamber layout.

The number of drawers into which the refrigerator freezer is divided. For top-mounted freezers (see “Freezer”), this paragraph may indicate the number of levels, taking into account the shelves the fridge is equipped (drawers are not used in such chambers).

On the one hand, the abundance of drawers makes it easy to distribute different types of foods in different compartments. On the other hand, more drawers (for the same total freezer capacity) mean less height and capacity for each drawer. So when choosing, you should consider what is more important for you — extensive possibilities for sorting content or the capacity of individual drawers. As for the specific quantity, most modern refrigerators have 3-drawer freezers — this number is generally considered the best compromise between the nuances described above. A larger number of drawers is found mainly in high-capacity units, but 1 – 2 freezer drawers can be found in all types of refrigerators — from small classic to large French Door and Side-by-Side (see "Product type").