Modern LG refrigerators are equipped with many technological solutions designed to extend the service life of products and preserve their original properties. One of the key options that raises questions among users is the intensive cooling mode, often called quick freezing. This function not only reduces the temperature, but creates extreme conditions for passing the critical freezing point of water in the products.
Unlike the standard operating mode, when the compressor is turned on as needed, activating this option forces the unit to work at the limit of its capabilities. Intensive freezing allows you to create the finest ice crystals inside the cellular structure of vegetables, fruits or meat, which prevents tissue destruction during defrosting. Understanding the mechanics of this process will help you effectively use the device's resources.
Many equipment owners mistakenly believe that this mode is needed only for fresh products, but its application is wider. Proper use of algorithms Smart Cooling or DoorCooling+ in conjunction with manual activation of the accelerated cycle makes it possible to quickly cool a large amount of warm food after cooking without disturbing the temperature balance in the entire volume of the chamber.
Operating principle and technical features of the mode
Fast function freezing in LG refrigerators is implemented through software that controls the operation of the compressor Inverter Linear Compressor. When the mode is activated, the system ignores standard pauses and shutdown cycles, forcing the motor to run continuously or at minimal intervals. This allows you to reach a temperature of minus 24 degrees or lower in the freezer in a short time.
The main goal of this approach is to bypass the phase of slow crystal formation. When water in food freezes slowly, it forms large, sharp crystals that rupture cell walls. Ultra-fast cooling fixes the structure of the product, preserving its juice and taste after defrosting. In models with the system No Frost this process is also accompanied by increased fan operation.
⚠️ Attention: Prolonged operation of the compressor at maximum speed leads to increased energy consumption and heating of the case. It is not recommended to keep the mode activated for longer than 24 hours unless necessary.
Technically, the process is controlled by an electronic module that receives signals from temperature sensors. If you notice that the indicator is constantly on, this may indicate that the system is unable to achieve the set parameters due to overload or malfunction. In normal mode, the cycle should complete automatically or after manual shutdown of the user
Technical nuances of the operation of an inverter compressor
The inverter motor in LG refrigerators does not stop completely, but only reduces the speed. In fast freezing mode, it switches to maximum rotation speed, which provides smooth but powerful cooling without sudden power surges at start-up, characteristic of older models.
How to activate the function on different LG models
The control interface of LG refrigerators varies depending on the series and year of manufacture of the device. In most modern models with a display on the door, you need to find a button with the corresponding designation. Usually it is signed as Express Freeze, Super Freeze or has a snowflake icon. Pressing this button switches the freezer to enhanced mode.
For models with electronic control, where the display is located inside the chamber or on the top panel, the sequence of actions may differ. It is often necessary to press and hold a button for 3 seconds to activate the lock function or special modes. In some lines, such as LG Door-in-Door, control is carried out through a touch panel hidden when the door is closed.
- 🔹 Find the
FreezeorExpressbutton on the control panel. - 🔹 Press once to turn on or hold for 3 seconds if confirmation is required.
- 🔹 Wait for the indicator to light up confirming the activation of the mode.
- 🔹 To disable, repeat the action or wait for the cycle to complete automatically.
It is important to note that in some budget mechanical models this function may be absent or implemented through Rotary temperature control to the “Max” position. In such cases mechanical thermostat simply forcibly closes the compressor power circuit until you manually return the regulator to its original position.
☑️ Check before activation
Time intervals and automatic shutdown
One of the most common questions concerns the duration of the mode. In most LG electronically controlled refrigerators, the fast freeze function operates in an automatic cycle. Once activated, the countdown timer starts a process that usually lasts from 18 to 24 hours, after which the refrigerator automatically returns to the standard operating algorithm.
If you are using a manually controlled model or the function was forcibly activated without a timer, the responsibility for timely shutdown falls on the user. Long-term work in extreme mode does not make sense after the food has already frozen. Moreover, this creates an extra load on the unit components.
| Control type | Cycle duration | Shutdown method | Indication |
|---|---|---|---|
| Electronic (Smart) | ~24 hours | Automatic | Indicator goes off |
| Electronic (Manual) | At discretion | Press again | Continuously lit |
| Mechanical | Optional | Rotate the knob | None |
| ThinQ application | Customizable | Via smartphone | Notification |
It is worth considering that the actual freezing time depends on the volume of loaded products. If you loaded a completely empty camera, the process will take less time, but the automation will not know about this and will work according to the established algorithm. Therefore manual control in such situations it will be a more rational solution to save energy.
Optimal scenarios for using fast frost
The effectiveness of the function is revealed in specific everyday situations. First of all, this is the preparation of food for future use. When you bought a large amount of meat, fish or berries from the market or brought a harvest from the dacha, the standard regime may not be enough for high-quality preservation. In this case, switching on Super Freeze is mandatory.
The second scenario is placing a large volume of products at room temperature. If you put several liters of hot soup or warm semi-finished products in the freezer, this will cause a sharp jump in temperature throughout the entire volume. Activating the accelerated cycle will help compensate for heat shock and quickly return the environment to the set parameters, preventing the reserves already lying there from defrosting.
- 🍓 Preparing seasonal berries and fruits to preserve vitamins.
- 🥩 Buying a large amount of fresh meat or fish for the week.
- 🍲 Cooling a large volume of cooked food.
- ❄️ Restoring temperature after long-term defrosting or cleaning.
The mode is also useful before an important event, when you plan to remove a large amount of food. Enabling this function in advance will create a “cold reserve” that will allow food to stay frozen longer, even during a short power outage or frequent door openings during a party.
⚠️ Attention: Do not load more than 2-3 kg of warm food into the freezer at the same time, even with the fast freezing function turned on. This may lead to a temporary increase in temperature in the refrigerator compartment.
The influence of the mode on the safety of food and vitamins
The main advantage of using this function is the biochemical aspect. When freezing slowly, the water contained in the cells turns into large ice needles. These needles pierce the cell membranes, and when defrosted, valuable cell juice flows out, taking with it dissolved vitamins and minerals. The product becomes dry and flabby.
Blast freezing, which this mode simulates, allows water to crystallize instantly, forming many microscopic crystals. They do not damage the cell structure. As a result, after defrosting, meat or fish retains its elasticity, color and maximum amount of nutrients. For vegetables and fruits, this is the only way to preserve their shape and texture.
This is especially critical for products with high humidity: strawberries, tomatoes, herbs, seafood. Under normal conditions they turn into mush, but after being quickly frozen in the LG refrigerator, they can be used almost as fresh. This makes the function indispensable for supporters of healthy eating and preparations.
Energy consumption and load on equipment
Using a high-power mode inevitably leads to an increase in electricity consumption. The compressor, operating without interruption, consumes significantly more watts than in normal standby mode. However, given that the cycle lasts for a limited time, the overall impact on the monthly electricity bill remains within reason.
From a technical service life point of view, modern LG inverter compressors are designed to withstand such loads. They have a safety margin and an engine cooling system. However, frequent and unreasonable activation of the mode can shorten the service life of seals and increase wear of mechanical parts. It is recommended to use the function only when necessary.
If you notice that the refrigerator begins to make unusual noise or vibrate more than usual while operating in this mode, check the installation of the cabinet. At maximum compressor power, any distortions become noticeable. Also make sure that the rear radiator grille is not clogged with dust, as effective heat dissipation in this mode is critical.
Frequently asked questions (FAQ)
Can I turn on quick freezing if the freezer is already full?
Yes, It is possible, but the efficiency will be lower. If the chamber is completely clogged, it is more difficult for cold air to circulate. It is recommended to free up some space near the ventilation holes or turn on the mode immediately after loading new products, before they have time to heat up the surrounding area.
Why is the Quick Freeze indicator flashing?
A flashing indicator usually indicates that the cooling process is in progress and the temperature has not yet reached the target value. If the indicator blinks constantly for several days, this may indicate a loose door or a malfunction of the heat dissipation system.
Is it harmful for an LG refrigerator to keep this mode on all the time?
Yes, it is harmful. Constant operation at the power limit will lead to accelerated wear of the compressor and an increase in the thickness of ice on the evaporator (even in No Frost systems), which will ultimately cause breakdown. Use the mode only cyclically.
Will quick freezing work if the refrigerator is auto-defrosting?
The control system has priority. During the defrost cycle the compressor is forced to switch off. The fast freezing mode will resume active operation immediately after the evaporator defrost procedure is completed.
Is it possible to freeze hot foods in this mode?
Technically, the refrigerator will cope with this task faster, but putting hot food in any refrigerator is not recommended. This creates excess moisture and stress. It is better to cool the dish to room temperature, and then use the quick freezing mode for final cooling.