An unpleasant smell coming from the refrigerator compartment can ruin the mood of even the most experienced cook. Instead of the expected aroma of fresh food, you feel a persistent amber, which is difficult to get rid of with regular airing. This problem is familiar to owners of both old Soviet models and modern units with the system No Frost.
This problem cannot be ignored, since foreign odors often indicate the growth of bacteria or the beginning of putrefactive processes inside the housing. Moreover, products stored in such an environment can quickly become saturated with foreign aromas, which will make them unsuitable for consumption.
In this article we will look in detail at why stench appears, how to find its source and what means best cope with disinfection. You will learn how to properly clean the inside of the unit, whether it is necessary to disassemble the ventilation system, and which odor absorbers actually work.
Finding the source of the unpleasant odor
The first step to eliminating the problem is a thorough inspection of the interior. Often the cause is a forgotten piece of meat, spilled milk or a burst bag of vegetables that got lost in the far corner of the shelf. A visual inspection may not be enough, so use your sense of smell as you approach different areas of the chamber.
If the shelves are clean, the problem may be hidden in the rubber door seals. Dirt and mold often accumulate in the folds of the material, which emit a musty smell. It is also worth checking egg trays and vegetable containers, as organic residues decompose very quickly there.
⚠️ Attention: If you smell burning or burnt plastic, immediately unplug the device. This may indicate overheating of the compressor or melted wiring, which requires calling a technician.
In models with an automatic defrost system, the stench sometimes comes from the drain hole. Condensation flows there, and if the tube is clogged with mucus or food debris, the fermentation process begins inside. To check this, you will need to remove the back wall of the chamber and inspect the evaporator tray.
Complete defrosting and disinfection of the chamber
The most effective way to get rid of ingrained odors is to completely defrost the unit. Even if you No Frost, it is recommended to turn off the equipment at least once a year for a day for general cleaning. This will allow the ice to melt and water with contaminants to drain into the drain.
After the chamber is free of ice, it is necessary to wash all surfaces. Special refrigerator cleaning products that do not leave toxic residues are ideal for this. You can use a weak solution of baking soda or vinegar if you prefer traditional methods.
Pay special attention to plastic parts, as this material perfectly absorbs odors. It is better to remove the shelves and drawers and wash them separately in a bath with warm water. Don't forget to wipe the outer walls, especially near the door handle, where grease and bacteria accumulate.
- 🧼 Thoroughly rinse all removable shelves and containers with detergent.
- 💧 Wipe the inner walls with a soda solution (2 tablespoons per 1 liter of water).
- 🚿 Don't forget to clean the drainage hole with a cotton swab or a brush.
- 🌬️ Leave the doors open for at least 10-12 hours to dry completely.
After wet cleaning, be sure to let the refrigerator dry completely. Turning on a wet unit can lead to the formation of a new ice crust and the appearance of mold.
☑️ General cleaning checklist
Cleaning the No Frost system and drainage
Owners of modern models are often faced with the fact that that even after washing the cameras the smell returns. This is a sure sign that the problem lies deep within the air circulation system. In the units No Frost air is constantly driven by a fan through the evaporator, and if bacteria has settled there, it will quickly spread throughout the entire volume.
To access hidden areas, you will need to remove the back panel in the freezer or refrigerator compartment. Underneath it there is an evaporator and a gutter for draining melt water. It is in this gutter that a biofilm often forms - a slippery coating, which is a source of odor.
Sequence of actions:1. Remove the rear plastic panel.
2. Locate the drain hole.
3. Pour warm water with disinfectant into it.
4. Blow out the tube with a bulb or syringe.
If you are not confident in your abilities or are afraid of damaging the fragile plastic latches, it is better to turn to professionals. Incorrect assembly may compromise the seal of the chamber or damage the water drainage system.
⚠️ Attention: When cleaning the evaporator, be careful with the tubes containing refrigerant. Damage to them will lead to freon leakage and costly repairs.
It is also worth checking the tray, which is located above the compressor at the back of the refrigerator. Water flows into it, and over time mud can form there. The tray must be removed, washed and treated with an antiseptic.
Folk and professional odor absorbers
After quality cleaning, it is important to consolidate the result and prevent the appearance of new aromas. For this, there are various absorbents that you can buy in a store or make yourself. They work on the principle of absorbing odor molecules from the air.
One of the most popular folk remedies is activated carbon. It has a porous structure that effectively traps foreign odors. The tablets need to be crushed, poured into an open container and placed on a shelf.
Natural coffee, soda or vinegar also do an excellent job. A cup of coffee beans or an open pack of soda is left in the chamber for several days. These substances are safe for products and do not require complex activation.
| Medicine | Efficacy | Validity period | Features |
|---|---|---|---|
| Activated carbon | High | Up to 1 month | Requires replacement or calcination |
| Baking soda | Medium | 2-3 weeks | Cheap and available |
| Special balls | Very high | Up to 6 months | Contain zeolite or silica gel |
| Lemon | Low (masks) | 3-5 days | Gives a pleasant citrus aroma |
Household chemical stores sell special odor absorbers in the form of gels, balls or discs. They contain active components that not only mask, but neutralize odor molecules.
Rules for storing food for freshness
Cleanliness in refrigerator directly depends on how you store food. The main reason for the appearance of odor is open packaging and the proximity of incompatible products. Raw meats, fish and strong-smelling cheeses should be stored in airtight containers.
Use a vacuum sealer or regular food containers with tight lids. This will not only keep the food fresh, but also prevent smells from mixing. It is better to keep vegetables and fruits in separate areas, as they emit ethylene, which accelerates the spoilage of their neighbors.
Regularly audit your supplies. Throw away expired foods, even if they look fine. Leaking milk or juice packages are a common cause of a long, unpleasant odor, as the liquid flows under the shelves.
- 🥩 Store meat and fish on the bottom shelf in a closed container.
- 🧀 Wrap cheeses and sausages in parchment or foil.
- 🥛 Place dairy products away from the back wall so as not to freeze.
- 🍞 It is better to store bread in a breadbox, and not in a bag, where it quickly becomes moldy.
Maintaining product proximity is the key to the absence of odors. Do not store prepared food next to raw food to avoid cross-contamination with bacteria.
Prevention and care of equipment
To prevent the problem from returning, you must adhere to a preventative cleaning schedule. Once a month, wipe the shelves with a damp cloth, and once a quarter, carry out a more thorough cleaning with disinfectants. This will take a little time, but will save you from general cleaning.
Monitor the condition of the door. If it doesn't close tightly, warm air gets in, which speeds up food spoilage and bacterial growth. Check the magnetic seal: it should be clean and elastic.
If the smell appeared immediately after purchasing a new refrigerator, it may be the smell of plastic or factory grease. In this case, it is enough to wash the camera with a weak solution of vinegar and leave it open for a day.
What to do if the smell does not go away after cleaning?
If you have tried all the methods, but the smell persists, it may have become embedded in the foam insulation of the case. This happens if a spoiled product has been lying inside for a long time. In this case, only ozonation of the chamber with professional equipment or long-term drying with ultraviolet light will help.
Can I use bleach for washing?
It is not recommended to use chlorine-containing products. They can damage plastic parts and leave a lingering chemical odor that is difficult to remove. It is better to use oxygen bleaches or special sprays.
How often should you change the filter in the refrigerator?
If your model has a carbon filter for air purification, it needs to be changed according to the instructions, usually once every 6-12 months. A saturated filter stops working and itself becomes a source of odor.