An unpleasant smell in the refrigerator can ruin the appetite and mood of any person. We often notice that even fresh foods begin to smell musty or rotten, although their expiration date has not yet expired. This is the first signal that bacteria have settled inside the air circulation system or in the drainage channels.
The situation is aggravated by the fact that many modern models are equipped with a system No Frostthat actively distributes aromas to all shelves. If you don't understand why your refrigerator stinks, the first thing you need to do is conduct a complete audit of the contents and find the source of the problem. Ignoring this fact can lead to equipment damage and expensive repairs.
In this article we will analyze in detail all the possible causes of the stench, from a banally forgotten piece of cheese to technical malfunctions. You will learn how to properly clean the unit, which products really work, and which can harm plastic parts. Attention: some methods require caution so as not to damage the seals.
Natural causes: products and their storage
The most banal, but most common reason lies in the food itself. Meat, fish or dairy products, even those packaged in plastic, can leak odors. If there is an open bag of garlic or onions in the chamber, this aroma will be absorbed into the plastic walls and rubber seals in a matter of hours.
Products that have expired, which could have rolled into the far corner, are especially dangerous. Putrefactive bacteria multiply rapidly, especially in a warm environment, which occurs when the door is frequently opened. Mold on bread or berries is also a powerful source of spores that settle on internal surfaces.
⚠️ Attention: Never store hot foods in the refrigerator. A sharp temperature change disrupts the microclimate and accelerates the deterioration of neighboring products, creating an ideal environment for bacteria.
To avoid mixing of flavors, it is necessary to respect the product proximity. It is better to store fish and meat in airtight containers on the lower shelves, and fruits and vegetables in special drawers. Regularly checking expiration dates will help prevent situations where it is unclear where the smell comes from.
Technical faults: drainage and ventilation
If you threw out all the products, washed the shelves, but the smell remains, the problem may lie in the technical part of the unit. In refrigerators with a No Frost i Low Frost system, there is a complex system of air ducts. If juice from defrosted meat or spilled milk gets into them, it is extremely difficult to remove the source of the smell without disassembling the panel.
The second important element is the drainage hole. It is designed to drain condensate to the evaporator. Often this channel becomes clogged with crumbs, mold or mucus. The water stops flowing, stagnates and begins to smell like rotten water or sewage. You can clean it using a special brush or soft wire.
In some cases, the smell may come from the compressor heater located at the rear of the unit. If dust or grease gets on it, they begin to burn when heated. It is also worth checking the condition sealing rubber: dirt often accumulates in the folds of old, cracked rubber, which cannot be washed with a regular rag.
How to clean the drainage hole?
To clean the drainage, use a long brush or soft wire with cotton wool at the end. Carefully insert the tool into the hole located on the back wall of the chamber, making rotational movements. After mechanical cleaning, pour in 50-100 ml of warm water with the addition of citric acid for disinfection.
Cleaning rules: what to wash and what to use
You need to approach the choice of cleaning agent wisely. Harsh chemicals can damage plastic or leave a toxic residue that is absorbed into food. Before starting any procedure, the unit must be defrosted (if it is not No Frost) and disconnected from the network. It is better to take all removable shelves and drawers to the bathroom for washing.
For washing the internal chambers, folk remedies are ideal, which not only clean, but also neutralize odors. Citric acid, soda and vinegar work wonders. However, it is important to maintain proportions so as not to damage the coating. After wet cleaning, all surfaces should dry naturally.
- 🍋 Lemon juice —perfectly dissolves grease and leaves a fresh citrus aroma, killing germs.
- 🥡 Soda solution —a soft abrasive that effectively removes dirt and neutralizes acidic odors.
- 🧼 Laundry soap is a safe means for washing plastic that does not leave a chemical film.
- 🌿 Ammonia is a powerful disinfectant, but requires careful ventilation after use.
☑️ General cleaning algorithm
Specialized products and odor absorbers
When mechanical cleaning is completed, but a slight odor remains, odor absorbers come to the rescue. The modern market offers many options: from carbon filters to electronic ionizers. Coal is a classic absorbent that absorbs odor molecules without releasing them back.
Gel absorbers operate due to the active evaporation of substances that neutralize odors. They are convenient because they do not need to be changed often - one block lasts for several months. Electronic devices operate on batteries and generate ions that destroy bacteria in the air, preventing food from rotting.
| Type of absorber | Principle of operation | Service life | Efficiency |
|---|---|---|---|
| Activated carbon | Adsorption (absorption) | 3-6 months | High |
| Gel blocks | Neutralization vapor | 2-4 months | Average |
| Electronic ionizer | Ozonation | Up to 5 years (batteries) | Very high |
| Folk methods (bread, rice) | Moisture absorption | 1-2 weeks | Low |
Do not forget about traditional methods, which often turn out to be no worse than store-bought ones. Brown bread, rice, an open pack of soda, or ground coffee can serve as temporary absorbents. The main thing is to change them regularly, otherwise they themselves will become a source of odor.
Factory smell and a new refrigerator
After purchasing new equipment, many are faced with a specific smell of plastic, lubricant or glue. This is normal for a new device. Manufacturers use various polymers and preservative oils, which must erode during use. Usually this smell disappears after 3-5 days.
To speed up the process, the new refrigerator should be thoroughly washed before turning it on for the first time. Use a weak solution of vinegar or citric acid. After washing, it is better to leave the doors ajar for several hours to ventilate. It is not recommended to turn on the unit with food immediately.
If the smell of burning or burning plastic persists for more than a week and is accompanied by heating of the housing, this may indicate a defect or incorrect installation. In this case, you need to contact a service center. A persistent burning smell in a new refrigerator is a sign of a wiring or compressor fault that requires immediate shutdown.
⚠️ Attention: If you smell a strong smell of chemicals or gas, do not try to eliminate it yourself. This may be hazardous to your health. Check the tightness of the system and contact a specialist.
Prevention: how to maintain freshness for a long time
To prevent the question “why does the refrigerator stink” from coming up before you regularly, it is important to follow the operating rules. Regularity is the key to success. Once a month, do a quick inspection of the products, and once a quarter, do a wet cleaning with disinfection. This will take a little time, but will save you from many problems.
Use the correct packaging. Store liquid products in closed bottles, bulk products in containers. It is better to transfer meat and fish immediately after purchase from store packaging into glass or plastic containers with a lid. This will prevent the spread of bacteria and mixing of odors.
Watch the temperature. Temperatures that are too high promote the growth of microorganisms, while temperatures that are too low can ruin the texture of foods. The optimal temperature in the main chamber is +2...+4°C, and in the freezer - -18°C and lower.
Why does the smell return immediately after cleaning?
Most likely, the source of the smell has not been completely eliminated. It can be hidden in the drainage hole, under the removable panel of the evaporator (evaporator) or in the sealing rubber. It is also possible that the smell has been absorbed into the plastic of the walls, and one surface wash is not enough - soaking or using an ozonizer is required.
Can I use bleach to wash the refrigerator?
The use of chlorine-containing products (for example, “Belizna”) is highly not recommended. Chlorine has a strong odor that is very difficult to remove and can leach into foods. In addition, chlorine is aggressive to some types of plastic and rubber, causing their destruction and yellowing.
How to remove the smell of fish from the refrigerator?
The fish smell is very persistent. After removing the source, wash all surfaces with a solution of vinegar (1:3 with water). Then place lemon slices or cotton pads soaked in lemon juice on the shelves. Activated carbon tablets placed near the place where the fish was lying help well.
Is the smell of mold in the refrigerator harmful to health?
Yes, mold spores circulating along with the air can settle on food and enter the body. This is especially dangerous for people with allergies, asthma and weakened immune systems. Prolonged inhalation of the spores can cause respiratory problems. If mold is detected, immediate disinfection is required.