The situation when, after defrosting or purchasing used equipment, there remains persistent unpleasant odorinside is familiar to many owners of household appliances. The plastic with which the inner walls are lined has a porous structure that can absorb volatile compounds for years. It is especially difficult to remove the smell of fish, spoiled meat or burning, since fat and protein molecules penetrate deeply into the microcracks of the coating.
Simply wiping the shelves with a damp cloth in this case is not enough, because water cannot dissolve the fatty base of most odors. You will need an integrated approach using adsorbents and special detergents that are safe for food-grade plastic. In this article we will look at chemical and folk methods that are guaranteed to return freshness to your refrigerator.
Primary preparation and defrosting of the chamber
Before you begin to actively remove aromas, you must completely empty the refrigerator of food and disconnect it from the power supply. This is a critical step, as a running compressor will continue to circulate air, spreading odors throughout the system, and may also overheat with the doors closed while cleaning. Leave the doors open for at least 2-3 hours so that the temperature inside is equal to room temperature and the condensation evaporates.
Remove all removable elements: shelves, vegetable drawers, containers on the door and egg trays. It is best to wash them separately in the bath or shower using warm water and dishwashing detergent. The main body of the refrigerator requires special attention: remove visible dirt, crumbs and drips that could become a source bacterial decomposition.
☑️ Preparing the refrigerator for cleaning
If fish or meat was defrosted in the refrigerator, pay attention to panel joints and rubber door seal. This is where liquid most often accumulates, which over time turns into a breeding ground for odor. Use dry paper towels to absorb remaining moisture before starting wet processing.
Mechanical cleaning and degreasing of surfaces
The first stage of odor control is the removal of the fatty film on which odorous molecules settle. A regular solution of laundry soap or dishwashing detergent is ideal for this. However
Apply the soap solution to a soft sponge and thoroughly wipe all internal surfaces, including the ceiling of the chamber. Pay special attention to the corners and places where the shelves are attached. After processing, be sure to wipe the plastic with a clean, damp cloth to remove any remaining soap, which itself can give off a specific odor when dry.
⚠️ Attention: Never use abrasive powders, hard brushes or metal scrapers to clean the internal plastic. Microscopic scratches will become an ideal place for bacteria to multiply, and next time it will be almost impossible to remove the smell.
To degrease difficult areas, you can use alcohol-containing wipes for office equipment or an aqueous solution of vodka in a 1:1 ratio. The alcohol evaporates quickly and does not leave a film, effectively breaking down animal fats. This is especially true if the cause of the smell is spilled milk or yogurt, which, when dried, form a hard-to-remove crust.
Folk remedies: soda, vinegar and mustard
If mechanical washing does not give a complete result, time-tested folk methods come to the rescue. The leader on the list of neutralizers is baking soda. It works as a soft abrasive and a powerful adsorbent that absorbs odor molecules. Prepare a paste of soda and a small amount of water, apply it to the walls and leave for 30–40 minutes, then rinse.
Acetic acid is another effective fighter against organic odors. A table solution of 9% vinegar and water in a 1:2 ratio perfectly disinfects surfaces. Wipe the refrigerator with this solution and leave the doors open for ventilation. The pungent smell of vinegar will disappear in 15–20 minutes, taking with it unpleasant aromas.
- 🍋 Citric acid: dissolve a packet of acid in a liter of water to obtain a refreshing and disinfectant with a pleasant citrus aroma.
- 🌿 Mustard powder: dilute dry mustard with warm water until it becomes sour cream, apply to dirt, leave for 15 minutes and rinse; perfectly removes grease.
- 🧼 Toothpaste: mint paste without colored granules can be used for local cleaning of stains and eliminating odors in hard-to-reach places.
Why can’t you mix vinegar and soda?
Mixing vinegar and soda leads to a violent chemical reaction with the release of carbon dioxide. In the closed space of the refrigerator, this will create excess pressure, and the cleaning efficiency will decrease, since the substances neutralize each other, turning into ordinary water and salt. Use them separately!
After treating with any of the products, you must thoroughly rinse the plastic with clean water. Residues of cleaning substances may react with products that you later put in the refrigerator, which is undesirable for health.
Professional and pharmacy neutralizers
When traditional methods seem ineffective or the smell is too persistent (for example, after storing rotten fish for weeks), you should turn to more powerful means. Hardware stores sell special odor removing sprays for refrigerators. They contain enzymes and active components that break down odor molecules at the chemical level.
You can also use pharmaceutical products. Activated carbon is a classic adsorbent that is sold in any pharmacy. Grind 10-15 tablets into powder, scatter on plates and place in the refrigerator for a day. Charcoal will draw out the odor from the pores of the plastic.
| Medicine | Principle of action | Exposure time | Efficiency |
|---|---|---|---|
| Baking soda | Absorption and mild alkaline reaction | 12–24 hours | Average |
| Vinegar 9% | Disinfection and neutralization of alkaline odors | 2–3 hours | High |
| Activated carbon | Deep adsorption in pores | 24–48 hours | Very high |
| Specialized sprays | Chemical breakdown of molecules | According to instructions (15 min) | Maximum |
They deserve special attention ozonizers. If you have a household ozonizer, place the hose inside a closed refrigerator and turn on the device for 10-15 minutes. Ozone oxidizes organic compounds, completely eliminating odor. However, after the procedure, the refrigerator must be thoroughly ventilated, since ozone is toxic to humans.
Eliminating odor in rubber seals
The rubber door seal is the “Achilles heel” of the refrigerator. The corrugated rubber structure ideally retains dirt, grease and moisture. Often this is where the smell of mold comes from, even if the plastic itself is perfectly clean inside. Just wiping it outside is not enough.
You will need a cotton swab or a thin brush. Dip them in a solution of vinegar, hydrogen peroxide, or a special rubber cleaner. Carefully go through all the folds of the seal, bending the rubber with your fingers. If you find black dots, these are moldwhich must be removed mechanically or using antifungal agents.
⚠️ Attention: Avoid getting oils (sunflower, machine) on the rubber seal. Oil destroys the rubber structure, making it sticky and porous, which in the future will only increase the absorption of odors and lead to loss of door tightness.
If the smell is deeply ingrained and no means help, consider replacing the seal. This is a consumable item that can be ordered for the model of your refrigerator (for example, Indesit, Atlant or Bosch) and installed yourself or call a specialist.
Prevention and maintaining freshness
After successful cleaning, it is important to prevent the problem from returning. Regularly check the expiration dates of products and immediately remove spoiled ones. Store strong-smelling foods (fish, smoked meats, cheese) in airtight containers or cling film.
To maintain freshness, you can use natural odor absorbers that do not require chemical treatment. Once a month, wipe the shelves with a solution of essential oils (lemon, mint, eucalyptus), but make sure that the oil does not get on the plastic in its pure form - only in the form of an aqueous solution.
- 🍞 Black bread: a piece of fresh black bread, left in an open plate for a day, perfectly absorbs foreign aromas.
- ☕ Ground coffee: dry coffee grounds or fresh beans in a saucer work as a powerful flavoring and absorbent.
- 🍚 Fig: a glass of dry rice, left in the refrigerator overnight, helps remove excess moisture and mustiness.
Following simple hygiene rules and regular maintenance will allow your refrigerator to remain a fresh zone. The plastic of modern models (LG, Samsung, Haier) often has an antibacterial coating, but it is not omnipotent and requires careful handling. Do not allow spilled liquids to dry on the shelves.
Frequently asked questions (FAQ)
Can I use chlorine-containing products (White) to clean the refrigerator?
Using chlorine is highly not recommended. In addition to the risk of damaging the plastic and causing yellow discoloration, chlorine has a persistent odor of its own that is very difficult to remove. In addition, chlorine vapor can stick to foods, making them unsafe to eat. It is better to choose oxygen bleaches or vinegar.
How to quickly remove the smell of fish from a new refrigerator?
If the smell of fish appeared immediately after loading food, first remove the source. Then wipe all surfaces with a citric acid solution or a special kitchen spray. Place an open pack of baking soda or activated carbon on the shelf for 24 hours. In this case, ventilation is ineffective, since the grease has already been absorbed.
Why does the smell return some time after cleaning?
This means that the source of the smell has not been completely eliminated. Most likely, liquid with food got into the technical holes, drainage system, or behind plastic panels where you did not reach when cleaning. In such cases, a deeper disassembly or calling a technician to clean the drainage is required.
Is it safe to wash the refrigerator with a steam cleaner?
The use of a steam cleaner is only permissible for metal parts and glass shelves. It is impossible to direct hot steam at the plastic case and, especially, at the rubber seal: the plastic can be deformed, and the rubber can lose its elasticity, which will lead to a violation of the seal.