Musty smell in the refrigerator: 12 proven ways to remove it forever

A musty smell in the refrigerator is a problem that every second home cook faces, but not everyone knows how to deal with it correctly. Most often, the “aroma” of dampness, mold or sour foods appears gradually: at first it is subtle, and then permeates the entire contents of the chamber. Many people try to mask it with air fresheners or baking soda, but this is only a temporary solution. In fact, a musty smell is a signal of a violation of the microclimate inside the refrigerator, and if the cause is not eliminated, it will return again and again.

In this article we will look 12 working methodshow to remove the musty smell once and for all, including emergency measures for strong “amber” and preventive techniques to prevent relapses. Let us separately dwell on the nuances for refrigerators NoFrost, LowFrost and classic drip models - after all, defrosting technology directly affects the choice of cleaning method. You will also learn what household mistakes accelerate the appearance of mustiness by 3 times and how to avoid them.

Why a musty smell appears in the refrigerator: 7 main reasons

Before fighting the consequences, you need to understand the cause. A musty smell rarely occurs on its own; it is usually caused by a combination of factors. Here are the most common culprits:

• 🍎 Expired or improperly stored products. Even one rotten fruit in the vegetable drawer can spoil the air in the entire chamber. Onions, garlic, cheeses and semi-finished meat products are especially “fragrant.”
• 💧 Excess humidity. Condensation on the walls, puddles under containers or faulty drainage create ideal conditions for the growth of bacteria and mold.
• 🧊 Improper defrosting. If the refrigerator is defrosted less than once every 6 months (for NoFrost - less than once a year), ice and dirt accumulate in hard-to-reach places.
• 🧽 Dirty seals and shelves. Rubber gaskets on the door collect crumbs and grease, and plastic surfaces absorb odors if they are not washed with specialized products.
• 🔧 Malfunction of the ventilation system. In models NoFrost mustyness may indicate a broken fan or clogged air ducts.
• 🌡️ Temperature violation. If the refrigerator operates at temperatures above +5°C, food spoils faster and bacteria actively multiply.
• 🚪 Prolonged opening of the door. Frequent and prolonged “airing” leads to the formation of condensation and an imbalance of the microclimate.

Interestingly, in 60% of cases, a musty smell appears due to a combination of several factors. For example, if the refrigerator has not been defrosted for a long time (reason No. 3), and then you put raw greens in it without packaging (reason No. 1 and No. 2), the problem will worsen significantly. At the same time, many overlook door seals their cleaning is often forgotten to be included in standard cleaning.

Emergency measures: how to remove a musty smell in 1 hour

If the smell is already “ingrained” and interferes with the normal use of the refrigerator, you need to act quickly. Here is an emergency cleaning algorithm that will help neutralize “amber” in 60–90 minutes:

1. Unplug the refrigerator and remove all products. Check them for freshness - throw away spoiled ones immediately.
2. Remove all removable elements: shelves, drawers, racks. Wash them in warm water with the addition of 1 tbsp. l. soda per 1 liter of water or dishwashing detergent.
3. Wipe the inner walls a solution of vinegar (1:1 with water) or hydrogen peroxide (3%). These products kill bacteria and neutralize odors.
4. Treat the seals with a toothbrush dipped in a soapy solution. The most dirt accumulates in these places.
5. Rinse the drainage hole (usually located on the back wall). Clogged drainage is a common cause of mustiness. Use a cotton swab or a special brush.
6. Dry the refrigerator for 30–40 minutes with the door open. To speed up the process, you can use a fan.
7. Place absorbents inside: an open pack of soda, activated carbon or special odor absorbers (for example, Bork Z100 or Topperr 3104).

To enhance the effect, you can use ozonator (if you have one on the household). This device destroys odor molecules and disinfects surfaces. 10-15 minutes of operation in a closed refrigerator is enough.

⚠️ Attention: Do not use chlorine-containing products to clean the refrigerator (for example, Whiteness)! They can react with plastic and leave a toxic odor that will be transferred to products. For disinfection, it is better to use 70% alcohol or specialized sprays (for example, Sano Refrigerator Cleaner).

Deep cleaning: how to remove a musty smell if it returns

If after emergency measures the smell appears again after 1-2 weeks, then the problem is deeper. In this case, it is necessary to disassemble the refrigerator and treat hidden areas. step-by-step instructions: complete disinfection with disassembling the refrigerator and processing hidden areas. Here are the step-by-step instructions:

1. Disassembling and washing removable elements

Take out all the shelves, drawers, grilles and back panel (if it is removable). adding:

• 🧼 Soda (2 tbsp per 5 liters of water) - to remove fat and light odors.
• 🍋 Citric acid (1 tbsp per 1 liter of water) - for disinfection and brightening plastic.
• 🧴 Special product (for example, Electrolux E6RFCC10) - for persistent stains.

Wipe all elements thoroughly with a sponge, paying attention to the joints and grooves. For hard-to-reach places, use a toothbrush or cotton swabs.

2. Cleaning the NoFrost system (if equipped)

In refrigerators NoFrost a musty smell often comes from air ducts i evaporator, which are hidden behind the back panel. To clean them:

1. Remove the back cover (usually it is secured with latches or screws).
2. Use a vacuum cleaner with use a narrow nozzle to remove dust and crumbs from the air ducts.
3. Wipe the evaporator (metal grill) with a solution of vinegar or alcohol.
4. Check the operation of the fan - it should rotate freely. If the blades are dirty, clean them with a cotton swab.

3. Disinfection of the drainage system

Clogged drainage is one of the main causes of mustiness. To clean it:

1. Find the drainage hole (usually at the bottom of the back wall).
2. Use a syringe or syringe, rinse it with warm water and soda.
3. For persistent blockages, use a wire or a special brush (for example, Cleanfix 38.300).
4. After cleaning, pour it into the hole 50 ml of chlorhexidine solution for disinfection.

If after all the manipulations the smell remains, perhaps the problem is mold on internal partsIn this case, only professional cleaning using a steam generator or UV lamp will help.

What to do if the smell comes from under the refrigerator?

If a musty smell is felt not inside, but outside (especially from below), check:

1. Condensation tray —it may be dirty or cracked.

2. Compressor and coil —dust and moisture sometimes accumulate on them, which leads to the appearance of mold.

3. Rubber feet —they can absorb odors from the floor.

For When cleaning, use a vacuum cleaner and a damp cloth with vinegar. If the pan is damaged, it needs to be replaced.

Folk remedies vs professional chemistry: which is more effective?

To combat the musty smell, you can use both improvised means and specialized chemistry. We tested several options and compiled a comparative one. table:

For maximum effect, you can combine products. For example, after cleaning with vinegar, place in the refrigerator a bag of soda (on the shelf) and absorber Topperr (in the door). This will help neutralize residual odors and prevent their return.

Prevention: how to prevent the appearance of a musty smell

The best way to deal with a musty smell is to prevent its appearance. Here 7 rulesthat will help keep the refrigerator fresh for a long time:

• 📅 Regular cleaning. Wash the refrigerator every 1-2 months (even if it seems clean). Wiping is enough for drip models. NoFrost Wiping is enough, for drip models - complete defrosting.
• 🥬 Proper storage of food. Use airtight containers for cheeses, sausages and ready-made dishes. Store vegetables and fruits in special boxes or bags with holes.
• 🌡️ Temperature controlOptimal mode: +2…+5°C in the refrigerator and -18°C in the freezer. Use a thermometer to check (for example, Xiaomi Mijia).
• 🚪 Checking the seals. The rubber gaskets must fit tightly to the body. If they are cracked or deformed, replace them.
• 💨 Ventilation. Do not place the refrigerator close to the wall (minimum gap - 5 cm). Regularly clean the rear grille from dust.
• 🧂 Absorbents. Keep an open pack of soda or activated carbon in the refrigerator.
• 🕒 Control the timingInspect the products once a week. Use stickers or a marker to mark the packaging.

Pay special attention freezer compartment. bacteria can accumulate on its walls. Defrost the freezer every 6 months (for NoFrost - once a year) and wipe it with an alcohol solution.

⚠️ Attention: If your refrigerator is equipped with the function "Vacation" or «Eco», do not turn it on for a long time! In these modes, the temperature rises to +10...+15°C, which creates ideal conditions for the growth of bacteria. Use them only in short-term absence (up to 3 days).

Common mistakes that aggravate the problem

Many housewives have been struggling with the musty smell for years, not realizing that they themselves are causing its return. data-i="240">5 most common mistakes 5 most common mistakes:

• 🧼 Using fragrances instead of cleaning. Air fresheners (even special ones for refrigerators) only mask the smell, but do not eliminate its cause. Bacteria and mold continue to multiply.
• ❄️ Incomplete defrosting. ice or water remains in the refrigerator, the problem will return after a few days. Make sure that all surfaces completely dry before turning on.
• 🥩 Storing raw food without packagingMeat, fish and poultry should be in airtight containers. or vacuum bags. Even short-term contact with air leads to oxidation and the appearance of odor.
• 🧽 Washing the refrigerator with hot water. data-i="251">. If the refrigerator does not cool well, constantly turns on/off, or too much condensation forms on the walls, this may be a sign of a breakdown. In this case, diagnostics are needed.. A sharp temperature change can damage the plastic and rubber seals.
• 🔌 Ignoring faults. If your refrigerator isn't cooling well, keeps turning on/off, or has too much condensation on the walls, this could be a sign of a problem. In this case, diagnostics is needed.

Another typical mistake is use of detergents with a strong smell (for example, coniferous or citrusového dish gel). They can react with the plastic and leave a persistent chemical “aroma” that will be transferred to the products.

Specifics of odor elimination in different types of refrigerators

Methods the fight against musty odor depends on type of refrigerator. Let's consider the nuances for each type:

1. Drip refrigerators

In such models (Indesit, Atlant, Biryusa) is formed on the back wall. condensation that flows into the drainage hole. Main problems:

• 💧 Clogged drainage - the main cause of mustiness. Clean it every 3 months.
• ❄️ Ice on the evaporator - if you don’t clean it, it starts to “smell.” refrigerator every 6 months.
• 🧽 Mold on plastic parts —wipe shelves and drawers with a vinegar solution after each cleaning.

2. NoFrost refrigerators

In models Samsung, LG, Bosch with the system NoFrost the smell often comes from air ducts or evaporatorFeatures of care:

• 💨 Cleaning the fan - dust and grease on the blades can become a source of odor. Take it out and wash it once a year.
• 🔍 Checking the seals — NoFrost they wear out faster due to frequent opening of the door.
• 🧊 Humidity control —if the chamber is too humid, turn the function "Super cooling" to 1–2 hours.

3. Two-chamber refrigerators

In models with a separate freezer (Liebherr, Beko), a musty smell can come from one compartment to another. To avoid this:

• 🔄 Defrost both chambers at the same time - this will prevent cross-contamination with odors.
• 🧊 Use separate absorbers for the refrigerator and freezer compartments.
• 📉 Monitor the temperature in the freezer —if it is higher -18°C, the food begins to deteriorate and smell.

For refrigerators with freshness zones (for example, Samsung Twin Cooling Plus) it is important to regularly clear filters i ventilation grilles. Their clogging leads to impaired air circulation and the appearance of mustiness.

FAQ: Answers to frequently asked questions

Can I use bleach to clean my refrigerator?

No, bleach (White, Domestos) can damage the plastic and leave a toxic odor. For disinfection, it is better to use 70% alcohol, hydrogen peroxide (3%) or specialized products (for example, Sano Refrigerator Cleaner).

Why did the smell become even worse after washing with vinegar? stronger?

Most likely, the vinegar was not washed off enough or reacted with residual fat. Rinse the refrigerator with clean water and dry it with the door open for 1-2 hours. Then repeat the treatment, but use soda solution (1 tbsp per 1 liter of water). data-i="323">How to get rid of the smell of fish or onions that has been absorbed into plastic?.

How to get rid of the smell of fish or onions that has been absorbed into plastic?

Persistent food odors help to remove:

• 🍋 Lemon juice —wipe plastic surfaces with it and leave for 10 minutes, then rinse.
• ☕ Coffee grounds - place it in an open container on the shelf for 1-2 days.
• 🧂 Salt + soda - sprinkle the mixture on the shelves for 30 minutes, then rinse.

If the smell does not go away, try a specialized absorber (for example, Bork Z100).

Is it necessary to defrost a NoFrost refrigerator?

Yes, despite the name, refrigerators NoFrost also need defrosting - although less often. It is enough to do it once a year. During cleaning, pay special attention to cleaning ventilation ducts and evaporatoras this is where the most dirt accumulates.

What to do if the smell appeared after the power was turned off?

When the power was turned off, food could begin to deteriorate. Proceed as follows:

1. Throw away all perishable foods (meat, fish, dairy products) if the refrigerator has not been in use for more than 2 hours.
2. Wash all shelves and containers with a solution of soda or vinegar.
3. Wipe the walls of the refrigerator alcohol solution (1:1 with water) for disinfection.
4. Place an odor absorber inside (for example, Topperr 3104) and leave the refrigerator turned off for 3-4 hours.

After turning it on, monitor the temperature during the day - it should stabilize at +2...+5°C.