How to Deep Clean a Refrigerator and Get Rid of Smells for Good

A refrigerator deep clean takes about an hour and fixes most smells for good, as long as you find the source rather than covering it up. The usual culprits are a spill under a crisper drawer, a sticky door gasket, a clogged defrost drain or stale ice, and each has a specific fix.

The food safety side matters as much as the smell. A clean fridge only protects food if it also holds the right temperature, so this guide covers both.

Food safety basics before you start

The Food and Drug Administration says to keep the refrigerator at or below 40°F and the freezer at 0°F. Its consumer guidance notes that an appliance thermometer is the best way to know those temperatures and is generally inexpensive. The FDA also advises cleaning the refrigerator regularly and wiping up spills immediately, because the longer ready-to-eat food sits, especially in a fridge running warm, the more chance Listeria has to grow.

The U.S. Department of Agriculture's Food Safety and Inspection Service (FSIS) adds two rules for the cleaning itself: wash surfaces with hot, soapy water and rinse, and avoid harsh solvents and abrasives that can leave a chemical taste or damage the interior.

Keep food safe while you work. Put perishables in a cooler with ice packs, and remember the USDA guidance that perishable food should not sit in the temperature danger zone for more than two hours.

One more check before you start: look at the thermometer reading with the fridge full and closed. If it is already above 40°F, cleaning will not fix that, and you may need to adjust the control or clean the condenser coil described below.

What you need

• A cooler and ice packs
• Mild dish detergent and baking soda
• White vinegar for lingering odors
• Soft cloths, a soft brush or old toothbrush, and a turkey baster
• Unscented liquid chlorine bleach, if you want to sanitize after spoiled food
• An appliance thermometer
• A long, narrow coil brush or a vacuum with a crevice tool

Step by step: the deep clean

1. Empty the fridge into the cooler. Throw out anything expired, moldy or questionable. The FDA's advice is that anything that looks or smells suspicious should be thrown out.
2. Remove shelves, drawers and door bins. Whirlpool warns not to wash cold glass shelves with warm water, so let them reach room temperature first. Some shelves with built-in lighting are not dishwasher-safe.
3. Hand-wash removable parts in warm water with mild detergent, rinse and dry fully.
4. Wash the interior from top to bottom with hot water and a little detergent, or a solution of baking soda and water. Pay attention to the corners and the floor of the fresh-food section, where drips collect.
5. Clean the door gasket. Open each fold with a soft brush, wipe it with the same solution and dry it. Sticky residue here is a common source of smell and a poor seal.
6. If spoiled food leaked, sanitize. The USDA's odor guidance suggests rinsing washed parts and surfaces with a solution of 1 tablespoon of unscented liquid chlorine bleach per gallon of water. Never mix bleach with vinegar or ammonia.
7. Do the freezer quickly, the same way, so it does not warm up.
8. Dry everything, replace the shelves, and leave the door open for about 15 minutes to air out, as the USDA suggests.
9. Reload once the thermometer reads 40°F or below, storing strong-smelling foods in sealed containers.

Smell removal: matching the fix to the cause

If the smell survives a full clean, work through the likely causes before buying deodorizers.

Smell or sign	Likely cause	Fix
Sour or rotten, strongest near the bottom	Spill under or behind crisper drawers	Remove drawers, wash the floor and drawer rails
Musty, near the door	Residue in the gasket folds	Brush, wipe and dry every fold
Musty plus water on the floor or ice under the freezer basket	Clogged defrost drain	Flush the drain (see below)
Ice tastes or smells off	Ice absorbing food odors, or an old filter	Discard ice, wash the bin, change the filter
Lingering smell after cleaning	Odor absorbed into plastic liner	Vinegar wipe, airing out, baking soda or coffee grounds

For odors that linger, the USDA's guidance on removing refrigerator odors lists several options: wipe the interior with equal parts vinegar and water, leave the doors open for several days to air out, fill the unit with rolled newspaper for several days, or place fresh coffee grounds or baking soda loosely in a large, shallow container. For everyday freshness, the FSIS suggests keeping an opened box of baking soda on a shelf. The USDA notes that severe odors may take several rounds of cleaning.

Defrost drain, drain pan and condenser coils

The defrost drain

Many frost-free fridges melt frost into a small drain that empties into a pan underneath the unit, where the water evaporates. When the drain clogs, water backs up, freezes or leaks, and old water starts to smell. GE says a clog often shows up as ice under the freezer's bottom basket or a puddle on the floor. Its fix, where the drain hole is visible on the back wall of the freezer, is to dissolve 1 teaspoon of baking soda in 2 cups of hot tap water and push it through with a turkey baster until you hear water running into the pan. GE recommends doing this once or twice a year as prevention.

The drain pan

The drain pan sits at the bottom of the fridge, usually behind the front grille or at the back. Some are designed to slide out for cleaning and some are fixed in place, so check the manual. If yours is removable, wash it in warm soapy water, dry it and slide it back. Unplug the fridge before working near the base.

The condenser coil

Dusty coils make the compressor work harder to hold temperature. The FSIS recommends cleaning the condenser coil several times a year with a brush or vacuum to remove dirt and lint. Unplug the fridge, find the coil (behind the bottom grille or on the back), and brush or vacuum gently without bending fins or touching wiring.

Ice maker and water dispenser

Ice is a sponge for smells. Whirlpool explains that air circulates between the fridge and freezer, so odors formed in one section transfer to the other and into the ice. Its advice:

• Empty and refresh the ice maker bin every 2 to 4 weeks, washing it in warm water with mild soap and drying it before you reinstall it.
• Throw out ice that tastes or smells wrong, then allow about 24 hours for a fresh supply.
• Replace the water filter every 6 months or when the indicator light comes on, and run water through the dispenser afterward. Cloudy ice or particles after a filter change usually clear with more flushing.
• Store strong foods such as onions, fish and cut cheese in airtight containers.

How often to clean each part

Task	How often	Source of the guideline
Wipe spills	Immediately	FDA
Clear out leftovers	Weekly; most cooked leftovers keep 3 to 4 days	USDA
Clean both sections	About monthly	Whirlpool
Refresh the ice bin	Every 2 to 4 weeks	Whirlpool
Change the water filter	About every 6 months	Whirlpool
Clean the condenser coil	Several times a year	USDA FSIS
Flush the defrost drain	Once or twice a year	GE

When to hand it to a pro

Call in help when the fridge has been off with food inside, when you are moving out and need it inspection-ready, or when a smell has survived two thorough cleanings. If water keeps pooling after you flush the drain, or the fridge cannot hold 40°F with clean coils, that is a job for an appliance repair technician rather than a cleaner. The USDA notes that a unit whose odor cannot be removed may have to be replaced, and that its door must be removed or secured before disposal so a child cannot be trapped.

Fridge interiors are among the most requested extras we see. In 2026, 643 of our completed jobs included the add-on for appliances cleaned inside and out, many of them move-out cleanings. Hello Cleaners' appliance cleaning covers the refrigerator and freezer, shelves, drawers and gaskets, with the price confirmed before you book. See our prices or book online for 10% off.