How often should I replace the baking soda in my refrigerator?

Replace the open box of baking soda every three months, or sooner if odors return. For best results, write the date on the box when you place it.

Can I use apple cider vinegar instead of white vinegar to clean my fridge?

Yes, apple cider vinegar can be used as a substitute for white vinegar in a 1:1 water solution. It is slightly less acidic but still effective for neutralizing odors. Rinse surfaces afterward to avoid a lingering vinegar smell.

Why does my refrigerator smell musty even after cleaning?

A musty smell often comes from moisture trapped in areas you may have missed, such as the door gasket, drip pan, or drain tube. Check these areas and ensure everything is completely dry before closing the door. If the smell persists, the odor may be from the condenser coils or a clogged drain, which may require professional service.

Is it safe to use bleach inside the refrigerator?

Yes, but only in a diluted solution (about one tablespoon of unscented liquid chlorine bleach per gallon of water) and only on non-porous surfaces. Rinse thoroughly with water and dry completely before returning food. Never mix bleach with vinegar or ammonia, as this produces toxic fumes.

How to Remove Bad Smell from Refrigerator: A Glossary of Cleaning and Deodorizing Steps

1. Source Identification: Finding the Odor's Origin

Before cleaning, locate the source of the smell. Common culprits include spoiled produce, leaked dairy, forgotten leftovers, or a spill that seeped under a crisper drawer. Check every shelf, drawer, and door bin, and inspect the drip pan (if accessible) and the gasket around the door, as food debris can collect there.

Remove all food items and place them in a cooler with ice packs to keep them cold while you work. Discard anything expired, visibly moldy, or with an off smell. This step prevents you from cleaning around spoiled food and ensures the odor is not reintroduced after you finish.

If the smell persists after a thorough cleaning, the source may be in the condenser coils (usually behind or below the unit) or in the drain tube that carries condensation to the drip pan. A clogged drain tube can harbor stagnant water and mold, producing a musty odor. Consult your refrigerator's manual to locate these parts.

Check all shelves, drawers, and door bins for spoiled food.
Inspect the door gasket and drip pan for debris.
Remove all food to a cooler before cleaning.

Open refrigerator with visible food containers and shelves

2. Shelf and Drawer Removal: Taking Apart the Interior

Remove all removable parts: glass shelves, crisper drawers, door bins, and any adjustable dividers. Check the manufacturer's instructions for the correct way to lift glass shelves (often by tilting and pulling forward) to avoid breakage. Drawers typically slide out after lifting slightly.

As you remove parts, note any spills or sticky residue that may have pooled underneath. These hidden spots are frequent odor sources. If a shelf or drawer is cracked, consider replacing it, as cracks can trap food particles and bacteria that are difficult to clean fully.

Keep the removed parts organized on a counter or in a sink. This allows you to wash them individually without crowding, ensuring each surface gets full contact with the cleaning solution.

Person removing a glass shelf from an open refrigerator

3. Washing Solutions: Choosing a Cleaner That Kills Odors

For routine cleaning, warm water with a few drops of mild dish soap is effective for removing grease and food residue. For tougher odors, a solution of equal parts water and white vinegar works as a mild acid that neutralizes alkaline odor compounds and dissolves mineral buildup. Avoid using harsh chemical cleaners or bleach inside the refrigerator, as they can leave residues that contaminate food and damage plastic surfaces.

Baking soda (sodium bicarbonate) is a gentle abrasive and a natural deodorizer. Make a loose paste with a little water to scrub stubborn spots on shelves and drawers, then rinse thoroughly. The mild alkalinity helps neutralize acidic odors, and it is safe on food-contact surfaces when rinsed well.

If you are concerned about lingering bacteria, a solution of one tablespoon of unscented liquid chlorine bleach per gallon of water can sanitize surfaces, but it must be rinsed completely and used only on non-porous materials. Always wear gloves and ensure the area is ventilated. For most odor issues, soap and vinegar are sufficient.

Cleaner	Best For	Notes
Mild dish soap + warm water	Routine cleaning of shelves and drawers	Rinse thoroughly to avoid soapy residue
White vinegar + water (1:1)	Neutralizing strong odors, dissolving mineral buildup	Do not mix with bleach; rinse after use
Baking soda paste	Scrubbing stubborn spots and absorbing odors	Make a paste with water, apply, let sit, then rinse
Bleach solution (1 tbsp per gallon)	Sanitizing after mold or heavy contamination	Rinse completely; use on non-porous surfaces only

4. Drying and Air Circulation: Preventing Mildew and Mustiness

After washing, dry every surface completely with a clean towel or allow it to air dry. Moisture is a primary cause of musty smells, as it encourages mold and mildew growth. Pay special attention to crevices, gasket folds, and the bottom of drawers where water tends to pool.

Leave the refrigerator door open for 15–30 minutes after cleaning to let the interior air out completely. This step is especially important if you used vinegar or bleach, as it allows fumes to dissipate. While the door is open, wipe down the door gasket with a damp cloth and dry it, as this area often traps food particles and moisture.

If your refrigerator has a fan (common in frost-free models), ensure the air vents are not blocked by food containers. Good airflow helps maintain even temperatures and reduces condensation, which in turn reduces odor-causing mold.

5. Deodorizing Agents: Absorbing Lingering Smells

Once the interior is clean and dry, place an open box of baking soda on a shelf. Baking soda absorbs odors over time; replace it every three months or sooner if you notice a return of smells. This is a passive, low-cost method that works for most refrigerators.

Activated charcoal (often sold as bamboo charcoal bags) is a more porous alternative that traps odor molecules effectively. It can be recharged by placing it in direct sunlight for a few hours each month. Unlike baking soda, charcoal bags last up to a year before needing replacement.

For a quick fix, a small bowl of white vinegar or used coffee grounds can absorb odors, but these need to be replaced every few days. Avoid using scented candles, air fresheners, or perfume sprays inside the refrigerator, as they only mask odors and can impart unwanted flavors to food.

Place an open box of baking soda on a shelf; replace every 3 months.
Use activated charcoal bags; recharge monthly in sunlight.
Try a bowl of vinegar or coffee grounds for a short-term solution.

6. Compartment-Specific Care: Crispers, Freezer, and Door Bins

Crisper drawers are designed to maintain humidity, but this also makes them prone to mold if produce spoils. Wash them with soapy water, then dry them thoroughly before returning. To reduce future odors, line the bottom with a paper towel to absorb excess moisture, and remove overripe fruit promptly.

The freezer can develop odors from ice crystals absorbing smells of stored food. If the freezer smells, empty it, defrost if ice has built up, and wipe the interior with a vinegar solution. Do not use baking soda in the freezer, as it can absorb moisture and clump; instead, use a small dish of dry coffee grounds.

Door bins hold frequently used items like milk and condiments, which can leak. Remove the bins, wash them, and check the gasket for sticky residue. When returning items, wipe bottle bottoms to avoid transferring dirt and spills.

7. Maintenance Habits: Preventing Odors from Returning

Adopt a weekly routine of checking for expired foods and wiping up spills immediately. A spill that sits for days becomes a stubborn odor source. Keep a small container of baking soda in the door or on a shelf as a continuous absorber, and replace it regularly.

Store strong-smelling foods like fish, onions, and leftovers in sealed containers. This prevents their odors from spreading to other items and absorbing into plastic interiors. Consider using glass containers, which do not retain odors as much as plastic.

If you have a self-defrosting refrigerator, clean the drain hole (often located at the back of the interior floor) with a cotton swab and a mild cleaning solution to prevent clogs. Consult your manual for the drain's location. Regular maintenance of the door gasket—wiping it clean and checking for tears—also helps maintain a proper seal, which keeps humidity and odors in check.