Which number in the refrigerator freezes the most: we analyze modes 1, 5 and 7

You are standing in front of the refrigerator, trying to understand why the ice cream is melting and the meat is covered with an ice crust. On the control panel there are mysterious numbers from 1 to 7, but which of them are responsible for maximum cooling, and which ones simply maintain freshness? This confusion is familiar to many: manufacturers rarely explain exactly how the numbers relate to real temperatures. As a result, users either overfreeze food or risk spoiling it.

In fact, the logic of the numbers depends on refrigerator brands (for example, y Samsung and Atlant scales may differ) and even from compressor models. In this article we will not only decipher what each number means, but also show how number "7" in 90% of cases gives the lowest temperature, but its use is justified only in 3 situations. You will also learn why mode "5" often becomes the golden mean, and how to avoid common mistakes when setting up.

Why the numbers on the refrigerator are not degrees

Many people mistakenly believe that the number “1” corresponds to +1°C, and “7” – −7°C. In fact, it is cooling power levelsand not direct temperature. Manufacturers use a scale to simplify control, but the actual values depend on:

• 🔹 Type of refrigerator: in No Frost and drip systems, the adjustment algorithms are different.
• 🔹 Chamber volume: small freezers are cooled faster, so “7” there can mean −24°C, and in a large Side-by-Side - only −18°C.
• 🔹 External temperature: in the summer at +30°C in the room the refrigerator at “5” will work more intensely than in the winter at +20°C.

For example, in refrigerators LG with a system Smart Inverter the number "4" usually corresponds to −18°C in the freezer, and in models Indesit the same number may correspond to −20°C. To avoid guessing, look in Instructions → Section "Temperature Conditions" or find the sticker with technical data on the back wall.

Table: what temperatures are hidden behind numbers 1–7

Below is an average table for most modern refrigerators (data is relevant for models after 2018). Please note: in freezers with No Frost system temperatures may be 1-2°C higher due to automatic defrosting.

⚠️ Attention: If your refrigerator is equipped with electronic display (for example Samsung Family Hub), the numbers may be displayed as "Min"/"Max" or "Eco"/"Power Cool." In this case, "Max" or "Power Cool" always means maximum cooling, similar to "7" on mechanical regulators.

When to set "7": 3 cases when maximum freezing is needed

Mode "7" (or "Max") consumes 20-30% more electricity and creates additional load on the compressor. It should be used only in exceptional situations:

1. Quick freezing of fresh food. For example, if you bought 5 kg of meat or berries, set “7” for 6–12 hours, then return to “4–5”. This will prevent the formation of large ice crystals and preserve the structure of the food.
2. Summer heat (above +30°C in the room). In this case, the refrigerator at “5” may not be able to maintain −18°C. Check the temperature with a thermometer: if the freezer is warmer than −16°C, temporarily increase the power.
3. After defrosting or power outage. To restore the cold faster, use "7" for 2-3 hours, then switch to standard mode.

Set the timer for 6–12 hours (do not leave for long)|

Check the temperature with a thermometer|

Do not load the freezer to more than 70%|

After freezing, return to mode to “4–5”-->

⚠️ Attention: If your refrigerator is older than 10 years, mode “7” may cause the compressor to overheat. In this case, it is better to use “6” and monitor the operation of the motor (it should not work without stopping for more than 1 hour).

Dangers of freezing: why "7" can spoil food

It would seem that the colder the better. But long-term storage at −24°C and below leads to a “cold burn” of products: meat becomes dry, vegetables lose vitamins, and ice cream becomes covered with an ice crust. This is what happens to popular products:

• 🍖 Meat/fish: at −20°C and below the fibers are destroyed, after defrosting the product loses up to 30% of its juice.
• 🍓 Berries: turn into a shapeless mass due to ice crystals.
• 🧀 Cheeses: become crumbly, lose their taste.
• 🍦 Ice cream: a snow crust forms, the texture becomes sandy.

Exception - deep freezing (below −30°C), which is used for long-term storage (from 6 months). But this mode is only available in professional chest freezers; household refrigerators are not designed for it.

How to choose the optimal number for your refrigerator

There is no universal answer, but there is an algorithm that works for 95% of models:

1. Determine the type of product.
   • 🥩 Meat/fish: −18°C (mode "4–5").
   • 🥦 Vegetables/fruits: +2...+4°C (mode "3" in the refrigerator).
   • 🥛 Dairy products: +4...+5°C (mode "2–3").

Please note workload. If the freezer is 80% full, increase the power by 1 point (for example, from "4" to "5").

Check the external conditions. In summer or in a small kitchen, add 1 item to the standard mode.

For refrigerators with electronically controlled (for example, Bosch VitaFresh) there are often separate zones with individual settings. In this case:

Freezer compartment: −18°C (analogous to "4–5")
Freshness zone: +1°C (analogous to "2")
Main chamber: +4°C (analogous "3")

What to do if the refrigerator does not keep the temperature?

If after setting mode "7" the freezer is warmer than −15°C, check

1. The tightness of the door closure (the seal may have worn out).

2. Clogged ventilation holes (in No Frost models).

3. Compressor operation - it should turn on every 20-30 minutes.

If the problem persists, contact a service center: there may be a freon leak or a thermostat malfunction.

Myths about numbers in the refrigerator: what actually works

On the Internet you can find dozens of “tips” for setting up a refrigerator, but most of them are outdated or simply wrong. Let's look at the most popular ones:

⚠️ Attention: If your refrigerator was manufactured before 2010, the scale of numbers may be inverted (for example, “1” = maximum cold). Check this in the instructions or on the manufacturer's website.

• ❌ Myth 1: "The number '1' is an economical mode."

  🔹 Reality: Mode "1" simply maintains minimal cooling, but does not save energy. In this case, the compressor works longer, but less intensively, which can lead to overconsumption of electricity by 10–15%.

• ❌ Myth 2: "You need to set '7' in summer and '3' in winter."

  🔹 Reality: Modern refrigerators (for example, Liebherr s SmartDevice) automatically adapt to the external temperature. Manual adjustment is only needed in extreme heat (+35°C and above).

• ❌ Myth 3: "The more often you open the door, the more you need to freeze."

  🔹 Reality: Frequent opening leads to to icing and compressor overload. It is better to reduce the time you open the door (for example, take out food in advance) and check the seal.

FAQ: Frequently asked questions about temperature settings

Is it possible to set different numbers in the refrigerator and freezer compartments?

Yes, in most models the adjustments are independent. For example, in Atlant you can set "3" in the refrigerator compartment (+4°C) and "5" in the freezer (−18°C). The exception is some budget models (for example, Birusa), where one knob controls both cameras.

Why is it in the freezer -24°C, but the food still spoils?

The reasons may be the following:

1. The seal of the packaging is broken (air gets inside).
2. Products are stored for too long (even at −24°C meat does not last forever).
3. Frequent temperature changes due to opening the door.

Use vacuum bags or containers with silicone gaskets.

How to understand that the refrigerator is freezing too much?

Signs of freezing:

• A thick layer of frost or ice forms on the food.
• Vegetables/fruits in the refrigerator compartment freeze (become soft).
• The compressor works almost without stopping.

In this case, reduce the number by 1-2 points and check the temperature after 12 hours.

Do you need to change the mode if the refrigerator is almost empty?

Yes, in a half-empty chamber the cold is distributed unevenly. Recommendations:

• If the freezer is less than 30% full, reduce the power by 1 point (for example, from "5" to "4").
• Place plastic water bottles in the empty compartments - they will accumulate cold.

What to do if there is no numbers, but only the slider?

In refrigerators with touch controls (for example, Samsung RS6HA), the slider is usually divided into 5-7 segments. Far right position = maximum cold (similar to "7"), far left = minimum ("1"). For exact temperature values, see the instructions or on the display (if there is a display in °C).