How to permanently remove an unpleasant odor from the refrigerator using soda: step by step guide

An unpleasant smell in the refrigerator is a problem that almost everyone faces. It appears suddenly: either because of a fish forgotten on the back shelf, or because of spilled milk that has soaked into the plastic. But even after thorough cleaning, the aroma can remain, penetrating into the seals and walls. In such cases, the usual baking soda comes to the rescue - a cheap but incredibly effective product that absorbs odors at the molecular level.

In this article we will examine 7 working methods the use of soda to eliminate odors, including express methods and deep cleaning You will learn how to properly prepare solutions, what mistakes are most often made during processing, and why soda works better than many industrial fresheners. And also - how to prevent the appearance of odor in the future, using simple preventive measures.

Important: all methods are suitable for refrigerators of any brands - from Atlant i Indesit to Samsung i LG, regardless of the defrosting system (No Frost or drip). The main thing is to follow the sequence of actions and not skip the preparation steps.

Why is soda more effective than other means?

Baking soda (sodium bicarbonate) is natural absorbentwhich neutralizes odors, rather than masking them like flavorings. Its molecules react with volatile organic compounds (the same “smelly” particles), breaking them down into harmless components. Unlike vinegar or lemon, soda does not leave behind its own aroma, which is especially important for refrigerators.

Advantages of soda over other means:

• 🧪 Safety: non-toxic, does not cause allergies, approved for use in food areas.
• 💰 Availability: a pack of soda costs 10–20 times cheaper than specialized odor absorbers.
• 🔄 Reusable: the same powder can be “reanimated” by calcination in the oven.
• ⏳ Long-lasting effect: when used correctly, protects against odors for up to 3 months.

In addition, soda has a slight antibacterial effect, which helps fight not only odors, but also their source - bacteria and mold. This is especially true for refrigerators with a No Frostsystem, where due to air circulation, germs spread faster.

Preparing the refrigerator for treatment with soda

Before you begin to eliminate the smell, the refrigerator must be properly prepared. Skipping this step will reduce the effectiveness of the soda to zero, since the main sources of flavor will remain untouched. Here's what you need to do:

Unplug and defrost (if there is ice)

Remove all products and shelves

Wash the removable elements with warm water and soap

Wipe the walls and seals with a vinegar solution (1:1)

Dry the refrigerator for at least 1 hour-->

Pay special attention sealing gum —it is in its folds that the most bacteria and food debris accumulate. To clean, use a toothbrush dipped in a soda solution (2 tablespoons per 1 liter of water). If the seal is deformed or has cracks, it is better to replace it - even soda will not save you from odors if warm air constantly penetrates into the refrigerator.

To speed up drying, you can use a fan or hair dryer in cold air mode. The main thing is to make sure that there is no moisture left inside, otherwise the soda will react with water and lose some of its absorbent properties.

⚠️ Attention: If your refrigerator is equipped with a system No Frost, do not use sharp objects to remove ice from the evaporator. This may damage the cooling circuit. To defrost such models, it is enough to turn off the power for 12–24 hours.

3 express methods with soda to quickly eliminate the smell

If the smell has appeared recently and has not yet had time to be absorbed into the plastic, you can get by with quick methods. They do not require defrosting and take no more than 30 minutes.

1. Soda “bombs” to absorb odor

Mix 4 tbsp. l. soda with 1 tbsp. l. water to form a thick paste. Roll small balls out of it (the size of a walnut) and place them on saucers on all shelves of the refrigerator. Leave for 12-24 hours, then remove with a vacuum cleaner or damp cloth. This method is suitable for fresh odors (for example, from fish or onions).

2. Soda spray for walls and shelves

Dissolve 3 tbsp. l. baking soda in 500 ml of warm water, add 5 drops of tea tree essential oil (optional). Pour into a spray bottle and generously spray all internal surfaces. After 15 minutes, wipe with a dry cloth. The spray helps not only remove odor, but also disinfect the refrigerator.

3. Soda "bags" for long-term protection

Pour baking soda into small fabric bags (or socks) and place them in the corners of the refrigerator. Change contents every 2-3 months. To enhance the effect, you can add activated carbon (1:1) to the bags. This method is ideal for prevention odors.

Deep cleaning the refrigerator with soda: step-by-step instructions

If express methods did not help, it means that the smell has already been absorbed by plastic, rubber bands, or even the insulating layer. In this case, you need full processing disassembling the refrigerator. Here's how to do it correctly:

1. Removing removable elements. Remove all shelves, drawers, and door compartments. Soak them in a basin with hot water and soda (100 g per 5 l) for 1–2 hours.
2. Cleaning the drainage hole. There is a drain hole at the bottom of the refrigerator (usually under the vegetable drawer). Clean it with a cotton swab dipped in soda solution. This is where organic residues often accumulate, which rot and stink.
3. Treatment of walls and seal. Prepare a paste of baking soda and hydrogen peroxide (3:1). Apply it to all surfaces with a soft-bristled brush, paying special attention to joints and elastic. Leave for 30 minutes, then rinse.
4. Flushing the No Frost system (if any). In models with this system, odor may circulate through the air ducts. To clean them, turn on the refrigerator in ventilation mode (without cooling) and spray a soda solution into the openings of the air ducts.
5. Drying and assembly. Wipe all parts dry, dry the refrigerator for at least 2 hours, then reassemble.

To enhance the effect, you can use steam generator (if available). Treat all surfaces with it before applying soda - hot steam will open the pores of the plastic, and the soda will be able to penetrate deeper.

⚠️ Attention: Do not use abrasive sponges or metal brushes - they scratch the plastic, and dirt will get clogged into microcracks, increasing the smell. Only a soft brush or microfiber is suitable for cleaning.

How to remove the smell from the freezer with soda?

The freezer is a different story. Here, odors are absorbed more strongly due to low temperatures, and defrosting takes longer. But soda will cope here too, if you follow the algorithm:

1. Defrosting. Unplug the refrigerator, open the freezer door and leave for 12-24 hours. You cannot speed up the process with a hairdryer or hot water - this can damage the evaporator.

2. Cleaning ice. Once the ice has thawed, remove any remaining ice with a plastic scraper. Wipe the walls with a solution of soda and salt (2 tablespoons per 1 liter of water) - this will dissolve the remaining organic matter.

3. Disinfection. Spray the camera with baking soda and vinegar spray (1:1:10 - baking soda, vinegar, water). Leave for 1 hour, then wipe.

4. Odor absorber. Place an open box of baking soda (100 g) in the freezer for 2-3 days. To enhance the effect, add 2-3 tablets of activated carbon.

If foods with a strong odor (fish, garlic, smoked meats) were stored in the freezer, after cleaning, wipe the walls citric acid solution (1 tablespoon per 1 liter of water). This neutralizes fat deposits that retain odors.

What to do if the smell remains after cleaning?

If after all the procedures the smell persists, the problem may be:

1) Thermal insulation layer —if the refrigerator is old, the polyurethane foam inside the walls could absorb the smell. In this case, only replacing the seal or completely sealing the chamber (for example, using special foam) will help.

2) Drainage system - sometimes the smell comes from the tube that removes condensate. It needs to be washed with a soda solution using a syringe or an enema.

3) Electronics - in models with electronic control, the odor may come from the board (for example, if liquid gets on it). Only a service center will help here.

What should not be done when cleaning a refrigerator with soda?

Even such a harmless product as soda can be harmful if used incorrectly. Here 5 common mistakesthat will bring all efforts to naught:

• 🧂 Use expired soda. Over time, baking soda loses its absorbent properties. Check the expiration date on the packaging - if it has expired, the product will not help.
• 💦 Apply baking soda to wet surfaces. Wet baking soda creates an alkali that can corrode plastic or rubber. Always dry the refrigerator before processing.
• 🔥 Calcine the soda in the microwave. To “reanimate” the soda, it must be heated in the oven at 200°C for 15–20 minutes. The microwave does not provide uniform heating, and the soda may lose its properties.
• 🧼 Mix soda with bleach. This combination emits a toxic gas, which not only will not remove the smell, but will also make the refrigerator dangerous for storing food.
• ❄️ Close the refrigerator immediately after processing. The soda must act for at least 30 minutes with the door open, otherwise the smell will remain in a confined space.

Another important point: do not use flavored soda (for example, with vanilla or lavender). Additives in it can react with plastic and leave their own odor, which will be even worse than the original one.

Prevention of odors: how to maintain freshness for a long time?

In order not to have to deal with odors every few months, just follow simple rules:

1. Proper food storage:

• 🥩 Store meat and fish in vacuum bags or airtight containers.
• 🧀 Wrap cheeses in parchment paper - it allows air to pass through, but does not allow the smell to spread.
• 🍎 Fruits and vegetables keep in special boxes, separate from other products.

2. Regular cleaning:

• 🧽 Once a month, wash the refrigerator with a soda solution (1 tbsp per 1 liter of water).
• 🗓 Once every 3 months, check the expiration dates of products and get rid of expired ones.
• ❄️ Once every six months defrost the freezer, even if it is with No Frost.

3.Natural fresheners:

• ☕ Place an open jar of ground coffee in the refrigerator - it absorbs odors.
• 🍋 Half a lemon on the shelf neutralizes extraneous odors.
• 🌿 A bunch of fresh parsley in a glass of water will freshen the air.

If your refrigerator has a function Air Filter or Deodorizer (for example, in models Panasonic or Hitachi), do not forget to change filters according to the instructions. They are designed for 6–12 months of operation, after which they become a source of bacteria.

⚠️ Attention: Some modern refrigerators (for example Samsung Family Hub) have built-in carbon filters. They cannot be cleaned with soda - only replaced with new ones. Check the documentation for your model.

FAQ: Frequently asked questions about cleaning the refrigerator with soda

Can you use soda ash instead of baking soda?

No, soda ash (sodium carbonate) has a higher alkalinity and can damage plastic and rubber seals. It is only suitable for washing or cleaning pots, not for refrigerators. Baking soda (sodium bicarbonate) is safe and does not leave streaks.

How much soda is needed for a 300-liter refrigerator?

For a single treatment, 150–200 g of soda is enough. If you are making absorbent bags, 50 g is enough for each (change once every 2-3 months). For preparing solutions, the proportion is standard: 2–3 tbsp. l. per 1 liter of water.

Will soda help if the smell comes from plastic containers?

Yes, but the containers need to be treated separately. Soak them in a soda solution (4 tablespoons per 1 liter of hot water) for 3–4 hours, then wipe with a mixture of soda and vinegar (1:1). If the smell remains, it is better to throw away the container - low-quality plastic can absorb aromas forever.

Is it possible to mix soda with essential oils for aroma?

You can, but be careful. Add no more than 2-3 drops of oil (tea tree, lavender or citrus) per 100 g of soda. Larger amounts may leave greasy stains on the plastic. Avoid oils with a strong smell (cloves, cinnamon) - they can mix with residual aromas and give an unpleasant effect.

How long after cleaning with soda can you turn on the refrigerator?

The minimum time is 1 hour, but it is better to wait 2-3 hours. This is necessary so that:

• Excess moisture evaporates.
• Soda has time to completely neutralize odors.
• The plastic has cooled down after processing (if hot solutions were used).

If you used soda “bombs” or a spray, it is enough 30 minutes with the door open.