How to wash the inside of the refrigerator and outside: 12 proven remedies and 5 mistakes that spoil equipment

The refrigerator is the only household appliance that works 24/7, accumulating inside not only food, but also bacteria, mold, and fatty deposits. Improper cleaning can lead to compressor failure, seal corrosion, or even poisoning due to toxic detergents funds. In this article we will look at how can you wash a refrigerator in 2026 - from budget home solutions to certified professional chemicals, and also reveal myths about “folk” methods that actually harm equipment.

According to research by Rospotrebnadzora, staphylococci, E. coli and fungi are found in 68% of refrigerators after 3 months of operation without cleaning. At the same time, 4 out of 5 users wash the refrigerator incorrectly: they use abrasives, bleach, or simply wipe it with a damp cloth without removing the biofilm. We have collected the latest recommendations from manufacturers ( pathogenic microorganisms of the level of hospital wards - staphylococci, E. coli and fungi Aspergillus. At the same time, 4 out of 5 users wash the refrigerator incorrectly: they use abrasives, bleach, or simply wipe it with a damp cloth without removing the biofilm. We have collected current recommendations from manufacturers (LG, Samsung, Atlant, Beko) and experts on sanitization so that your equipment lasts longer and your food remains fresh.

Why ordinary water and a rag do not work: a scientific explanation

Many limit themselves to wiping shelves with a wet sponge, but this does not remove 90% of contaminants. Three types of deposits form in the refrigerator:

• 🦠 Biofilm - colonies of bacteria held together by a mucous substance (polysaccharides). Ordinary water does not destroy it; it requires surfactants (surfactants) or enzymes.
• 🧈 Fat deposits - residues of oils, sauces, meat juices. They are dissolved only with alkaline or alcohol compounds.
• 🍄 Mold spores —penetrate into microcracks in plastic and rubber. They are killed only by fungicides or high temperatures (+60°C).

Research Journal of Food Protection (2023) has proven: after “cleaning” with water, the quantity E. coli on the shelves is reduced by only 23%, whereas with use specialized products —by 98.7%. At the same time chlorine-containing preparations (type "Whiteness") have the opposite effect: they corrode aluminum parts and leave toxic fumes that are absorbed into products.

TOP 5 safe detergents for the refrigerator (according to manufacturers)

Equipment manufacturers (Liehberr, Bosch, Indesit) recommend avoiding aggressive chemicals and giving preference neutral pH detergents (6-8 units). Here are the proven options:

Important: For refrigerators with the system NoFrost you cannot use products with abrasives or chlorine - they destroy the anti-corrosion coating of the evaporator. Samsung and LG the instructions directly prohibit Domestos, Komet and similar preparations.

Folk remedies: what really works and what is a myth

On the Internet there are hundreds of tips for cleaning the refrigerator with soda, vinegar or even toothpaste. We tested popular recipes and identified 3 effective and 4 dangerous methods.

✅ They work (if used correctly):

• 🍋 Lemon juice + water (1:1) - removes odors and disinfects. But! You need to wash off after 10 minutes, otherwise the acid will corrode the coating.
• 🧂 Baking soda (2 tbsp per 1 liter of water) - removes fat and neutralizes odors. Suitable for NoFrost.
• 🫧 Laundry soap (72%) - only diluted (1:20). Effective against biofilm.

❌ Dangerous myths:

• 🧪 Vinegar (undiluted) —corrodes metal parts and leaves a pungent odor.
• 🧴 Toothpaste —contains abrasives, scratches plastic.
• 🧻 Bleach ("Whiteness") —toxic, destroys sealing rubber.
• 🔥 Boiling water — deforms plastic shelves (especially in models Atlant i Biryusa).

Why can't you use hydrogen peroxide?

Peroxide (3%) oxidizes aluminum and copper parts of the refrigerator, which leads to corrosion of refrigerant tubes. In addition, it discolors the plastic, leaving white spots. In medical institutions, peroxide is used to disinfect refrigerators, but only in a diluted form (0.5%) and with mandatory rinsing with distilled water.

Step-by-step instructions: how to wash a refrigerator without the risk of breakage

Cleaning the refrigerator is not only removing dirt, but also preventing breakdowns. Failure to follow the sequence can lead to a short circuit (if water gets on the electronics) or failure of the thermostat Follow this algorithm:

1. Unplug it and get all the products. It is not enough to set 0°C! You need to physically remove the plug from the socket.
2. Remove all removable elements (shelves, drawers, grates are washed). separately in warm water with the product.
3. Wipe the walls and seal from top to bottom. For hard-to-reach places, use cotton sticks or toothpicks.
4. Treat the drainage hole (at the bottom of the back wall). Clogged drainage is the cause of 80% of cases of “crying” back wall.
5. Dry all surfaces at least 30 minutes. Moisture is the main cause of mold.

Unplugged the refrigerator from the outlet|Took out all the food and shelves|Prepared a product (tested!)|Put on gloves|Put a rag under the drainage hole-->

Critical error: many people forget to wash condenser (the grill on the back of the refrigerator). Dust on it increases energy consumption by 20–30%. You can only clean the condenser with a vacuum cleaner or soft brush - no water!

How to remove persistent odors: 4 methods from professionals

If the refrigerator smells of rotten meat, fish or “swamp mud,” ordinary washing is not enough. The reason is mold spores or bacteria, penetrated into the micropores of the plastic. Here's what really helps:

• ☕ Activated carbon - place 10-15 tablets in bowls on the shelves and leave for 24 hours. Absorbs odors and moisture.
• 🍊 Citrus zest - put lemon/orange peels for 3 days. Essential oils kill bacteria.
• 🧂 Saline solution (1:10) - wipe all surfaces and leave for 1 hour, then rinse.
• 🌿 Ozonator - professional device (costs from 3000 ₽), kills odors and germs in 20 minutes.

If the smell remains after all procedures, check the drainage hole - organic matter often accumulates there, which not visible during superficial cleaning. In 30% of cases of “eternal” odor, clogged drainage is to blame, which requires flushing with a syringe with soda solution.

Cleaning refrigerators with the NoFrost system: features and risks

Refrigerators NoFrost (Samsung RB37A52, LG GA-B489, Atlant XM 4625-101) do not require defrosting, but this does not mean that they do not need to be washed. In such models, dirt accumulates in hidden places:

• 🌀 Ventilation holes - they become clogged with dust, which impairs air circulation.
• 🧊 Evaporator (hidden behind the back panel) - on it grease and mold settle.
• 🔄 Fan —if its blades are covered with plaque, the refrigerator begins to hum.

How to clean NoFrost correctly:

1. Turn off the refrigerator and wait until the ice (if any) melts on its own.
2. Remove the back panel (in most models it is secured with latches).
3. Wipe the evaporator with a soft cloth and soda solution (without pressing!).
4. Use a vacuum cleaner to remove dust from the ventilation ducts.
5. Do not turn on the refrigerator minimum 12 hours after cleaning - you need to give time to dry.

⚠️ Attention! In refrigerators NoFrost sharp objects cannot be used to remove ice (knives, spatulas). This will damage the freon system, and repairs will cost 10–15 thousand ₽.

Cleaning external surfaces: dos and don'ts

The refrigerator body also requires care - dust, greasy splashes and fingerprints spoil the appearance and can penetrate inside through ventilation slots. Case material dictates the cleaning rules:

For displays (in models with touch controls), use special wipes for electronics or a solution of isopropyl alcohol (70%). Do not apply force when wiping - touch panels LG and Samsung are pressure sensitive and can fail.

FAQ: we answer frequently asked questions

Is it possible to wash a refrigerator without unplugging it?

No! Even if you carefully wipe the shelves, there is a risk of moisture getting on the electronic unit or compressor. In models with NoFrost (for example, Bosch KAN92VI30), moisture can cause a short circuit in the defrosting system. Always wait until the display turns off completely (if it is installed). yes). unplug from the socket and wait until the display (if any) turns off completely.

How often should you wash the refrigerator?

The optimal frequency is every 1-2 monthsBut there are exceptions:

• If raw meat/fish was stored in the refrigerator, wash immediately after.
• In families with allergies or small children - once every 3 weeks.
• Refrigerators NoFrost can be washed less frequently (once at 3 months), but clean the ventilation grilles monthly.

How to wash a refrigerator with a plastic smell (new)?

The smell of new plastic (off-gassing) will disappear after 1-2 weeks. This will help speed up the process:

1. Ventilate with the door open for 24 hours.
2. Wipe surfaces with a vinegar solution (1:10) - neutralizes volatile compounds.
3. Place a bag of baking soda or activated carbon in the refrigerator.

Do not use flavorings or fresheners - they mask the smell, but do not remove its cause.

Is it possible to use a steam mop to clean a refrigerator?

Absolutely not! Hot steam:

• Deforms the rubber seals (they lose elasticity).
• Can damage the electronic control unit (in models with a display).
• Promotes corrosion of metal parts.

Exception - professional steam generators with temperature control (up to 60°C), but their cost (from 20 thousand ₽) makes the purchase impractical for household use.

How to clean the drainage hole if it is clogged?

Clogged drainage is the cause of the “crying” back wall and unpleasant smell. Instructions:

1. Turn off the refrigerator and take out everything. shelves.
2. Find the hole at the bottom of the back wall (sometimes it is hidden under a plastic plug).
3. Use syringes or syringe rinse the hole with warm water and soda.
4. If the blockage is severe, use wire (2-3 mm in diameter), but without pressure, so as not to damage the tube.
5. After cleaning, rinse the drainage potassium permanganate solution (weak!) for disinfection.

If the water does not go away, call a specialist - there may be a blockage in the drainage tube outside the chamber.