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To clean and sanitize a refrigerator after spoiled food, throw away the spoiled or questionable food, wash the shelves and interior, then sanitize with 1 tablespoon of unscented liquid chlorine bleach in 1 gallon of water. Keep food you are saving at 40°F or below while the refrigerator is empty, and do not taste food to decide whether it is safe. If the odor remains after cleaning, repeat the wash and use an odor-removal method; if spoiled liquid reached the insulation or the smell cannot be removed, the refrigerator may need to be discarded.
What should you do first after food spoils in the refrigerator?
Remove the food before you begin cleaning. Put spoiled, recalled, or questionable food in a sealed bag and discard it. Throw out food that touched the spoiled item or its leaking juices, too. Do not taste anything to test whether it is safe: harmful bacteria may not change food’s appearance, smell, or flavor. The USDA’s guidance is simple: when in doubt, throw it out.
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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteIf the spoilage followed a power outage, decide what to keep or discard before spending time on the refrigerator itself. Use an appliance thermometer when available, and keep food you are saving at 40°F or below. If the refrigerator has been open during cleanup, move the food to a cooler with ice or gel packs. CDC says not to leave food out of the refrigerator for more than 2 hours. USDA and Illinois Extension recommend keeping the cooler at 40°F or below.
Have sealable bags, hot water, dish detergent, baking soda, clean towels or paper towels, and unscented liquid chlorine bleach ready. A cooler and appliance thermometer are useful if you are keeping food while you work. Bleach is used after washing; it does not replace removing food residue and washing the surfaces.
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How do you clean and sanitize the refrigerator?
Use a wash-then-sanitize sequence: remove debris and wash first, rinse where needed, then apply the bleach solution. This combines the CDC’s recall-cleaning procedure with USDA FSIS’s spoiled-food odor procedure; the agencies present somewhat different washing and sanitizing details, so it is not a single agency protocol.
- Empty the refrigerator. Discard unsafe food and move food you are keeping into a cooler at 40°F or below. Keep the refrigerator door closed as much as practical until you are ready to clean.
- Remove shelves, drawers, and ice trays. Wash removable parts with hot water and detergent or hot soapy water, then dry them with a clean towel. Let cold glass shelves and drawers warm toward room temperature before washing them with hot water. CDC warns that running cold glass under hot water can crack it.
- Wash the interior, door, and gasket. USDA FSIS recommends hot water and baking soda for the inside, door, and gasket. CDC recommends hot soapy water, followed by a wipe with clean water to rinse away soap. Use a soft cloth or sponge and clean the seams and corners where liquid or food may have collected. For drawers or other parts that cannot be removed, wash them in place and rinse with clean water.
- Sanitize after washing. Mix 1 tablespoon of unscented liquid chlorine bleach with 1 gallon of water. CDC gives this as the sanitizing solution after washing with hot, soapy water; USDA FSIS specifies the same ratio as a rinse in its odor-removal instructions. Apply it to the cleaned surfaces and follow the bleach label and refrigerator manufacturer’s directions. Do not substitute a stronger general-purpose sanitizer recipe for this refrigerator dilution.
- Dry the surfaces and removable parts completely. Use a clean towel or a single-use paper towel, or allow surfaces to air-dry. Minnesota Extension notes that a dish towel can re-contaminate a cleaned surface. CDC advises washing the towels before using them again.
- Air the refrigerator. USDA FSIS recommends leaving the door open for about 15 minutes after washing and rinsing. Keep children away from an open, empty refrigerator so no one can become trapped inside.
- Clean the surrounding work area. Wash your hands with soap and water. Wipe counters or other surfaces that held food, refrigerator parts, or cleaning supplies with hot, soapy water. Return only food that is still safe.
Follow the refrigerator manufacturer’s instructions about which cleaners are suitable for its surfaces. USDA FSIS and Minnesota Extension caution against abrasives, solvents, and cleaners that can damage the finish or leave a chemical taste. The official procedures cited here name unscented liquid chlorine bleach, not scented, splashless, or non-chlorine products.
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What bleach-to-water ratio should you use in a refrigerator?
For sanitizing the washed refrigerator, use 1 tablespoon of unscented liquid chlorine bleach per gallon of water, unless the product’s label or appliance instructions specify otherwise. Do not confuse this with a stronger recipe cited for a narrow purpose, such as scrubbing visible mold on a rubber gasket.
| Use | Recipe or instruction | Important distinction |
|---|---|---|
| Sanitize the washed refrigerator | 1 tablespoon of unscented liquid chlorine bleach per gallon of water | CDC and USDA FSIS give this ratio for the refrigerator-cleaning procedure. |
| Scrub visible mold on rubber casings | USDA FSIS lists 3 teaspoons of bleach in 1 quart of water | This is a gasket-specific mold instruction, not the whole-refrigerator sanitizing mix. It is four times the concentration of 1 tablespoon per gallon. |
| General household sanitizer listed by Illinois Extension | 5 tablespoons, or 1/3 cup, per gallon | Do not substitute this general table entry for the refrigerator-specific 1-tablespoon-per-gallon instruction on that same Extension page. |
Bleach products differ in concentration. Minnesota Extension’s 2026 guidance lists 1 tablespoon per gallon for regular bleach labeled 5.25% sodium hypochlorite and 2½ teaspoons per gallon for ultra bleach labeled 6%. Iowa State Extension’s 2025 guidance specifies 1 tablespoon per gallon for unscented bleach labeled 2.75%. The CDC and USDA refrigerator pages do not state the sodium hypochlorite percentage assumed by their 1-tablespoon recipe. Check the bottle label and follow its dilution directions if they differ; the figures above should not be treated as interchangeable instructions for every product.
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There is a small arithmetic inconsistency in Minnesota Extension’s listed quantities: 1 tablespoon per gallon equals ¾ teaspoon per quart, not 1 teaspoon per quart. The CDC and USDA refrigerator procedure both directly state the per-gallon ratio, so use that as the common refrigerator-specific direction unless your bleach label says otherwise. FoodSafety.gov’s 1 cup of bleach in 5 gallons is for soaking flood-exposed items, not for wiping down a refrigerator.
What food should you throw away after a power outage?
Use a thermometer and the stricter applicable official limit when published guidance differs. A closed refrigerator keeps food cold for about 4 hours; a full freezer for about 48 hours; and a half-full freezer for about 24 hours, provided the doors stay closed. Those are approximate holding windows, not guarantees that every food remains safe until the exact minute.
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|---|---|---|
| Perishable food in a refrigerator after power loss | FDA and FoodSafety.gov say the closed refrigerator holds cold about 4 hours. FoodSafety.gov’s introduction says to discard refrigerated perishables after 4 hours without power; its chart is framed around exposure at 40°F or above for more than 2 hours. FDA’s storm guidance says to discard perishables above 40°F for 2 hours or more, while FDA’s power-outage page uses 4 hours above 40°F. | Keep saved food at or below 40°F, measure with an appliance or food thermometer, and use the stricter 2-hour-above-40°F cutoff when the official pages differ. |
| Food held at room temperature | FDA’s power-outage page says discard perishable food after 2 hours at room temperature, or 1 hour if outdoor temperatures are above 90°F. FoodSafety.gov likewise gives 2 hours, shortened to 1 hour above 90°F. | Discard perishable food that exceeds the relevant time limit. Do not use smell or taste to override the rule. |
| Food in a freezer | A full freezer holds temperature about 48 hours; a half-full freezer about 24 hours. FDA says food that still has ice crystals or measures 40°F or below may be refrozen or cooked. | Check temperature and ice crystals; do not rely on appearance or odor alone. The freezer should normally be at 0°F or below. |
Perishable foods commonly at risk include meat, poultry, fish and seafood, eggs, milk, leftovers, cooked casseroles, and opened foods that require refrigeration. FoodSafety.gov’s outage chart lists many additional foods, including soft and shredded cheeses, yogurt, opened baby formula, opened creamy dressings, cooked pasta and rice, and refrigerator dough. Its visible keep examples include hard cheeses, butter, some condiments, bread, and baked goods. The chart extract does not cover every food, so check the current FoodSafety.gov power-outage chart for a specific item rather than assuming an unlisted food is safe.
FDA’s power-outage page says perishable food measured at 45°F or below should be cooked and eaten as soon as possible, but its other guidance and FoodSafety.gov use 40°F as the key limit. When in doubt, follow the stricter cutoff and discard food that has been above 40°F for 2 hours or more. Do not taste food to check it.
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If a freezer has lost power and you have dry ice, FDA says 50 pounds should keep an 18-cubic-foot fully stocked freezer cold for two days. That is a specific estimate, not a substitute for checking the temperature or handling dry ice according to its instructions.
How do you get the smell of spoiled food out of the refrigerator?
First remove the source, wash and sanitize the surfaces, and dry the appliance. If the smell remains, repeat the cleaning before trying odor absorbers or scent treatments. USDA FSIS cautions that its methods may need to be repeated several times.
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- Wipe with equal parts vinegar and water. USDA FSIS says vinegar’s acid destroys mildew. Use this only after washing away spoiled food; it is not a substitute for cleaning or sanitizing.
- Air the refrigerator with the door open. USDA lists leaving the door open for several days. The appliance cannot store food during this time, so keep saved food in a cooler that stays at 40°F or below. Keep children away from the open refrigerator.
- Use newspapers. USDA says to stuff the refrigerator with rolled newspapers, close the door for several days, then remove the paper and clean with vinegar and water. Iowa State Extension says to leave the appliance running during this method. Follow the appliance’s instructions and do not put food back until the odor is gone and the interior is clean and dry.
- Set out fresh coffee grounds or baking soda. Sprinkle either loosely in a large, shallow container at the bottom of the refrigerator to absorb odor. This is an odor-control method, not a sanitizer. For routine freshness, USDA FSIS recommends keeping an open box of baking soda on a shelf.
- Try vanilla for lingering odor. USDA suggests placing a cotton swab soaked with vanilla in the refrigerator, closing the door for 24 hours, then checking the odor. Vanilla masks or changes scent; it does not clean contaminated surfaces.
- Consider a commercial odor product. USDA FSIS recommends using any such product exactly as its label directs. Its guidance does not specify a brand, ingredient, or model.
Do not put food back while the refrigerator is being aired for several days. If you cannot keep the saved food cold in a cooler, prioritize food safety and discard perishables rather than leaving them at room temperature.
When should you discard the refrigerator instead of cleaning it?
Discard the appliance if the odor cannot be removed, if spoiled juices have soaked into the insulation, or if flood water submerged it. Spoiled liquid can penetrate parts of the appliance that are difficult or impossible to clean; washing the visible surfaces may not address contamination inside insulation.
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The FDA also advises discarding a refrigerator if enough moisture from liquefied food reached the insulation. That is different from a removable shelf or drawer that can be washed. If the smell persists despite repeated cleaning, or you suspect liquid reached insulation, do not rely on a deodorizer to make the unit safe.
Make an old refrigerator safe before disposal. USDA FSIS says the surest method is removing the door. If that is not possible, permanently chain and padlock it closed or remove or disable the latch so the door cannot lock. This prevents a child from becoming trapped inside.
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Keep the refrigerator at 40°F or below and the freezer at 0°F or below, as USDA FSIS recommends. A refrigerator thermometer helps you spot a temperature problem that the appliance’s dial may not make obvious. During a power failure, keep doors closed and use a cooler with ice or gel packs for food you are saving.
Wipe spills promptly with hot, soapy water and rinse the surface. USDA’s refrigeration guidance says cooked leftovers generally keep for 4 days; raw poultry and ground meats generally keep for 1 to 2 days. The USDA mold guidance advises using leftovers within 3 to 4 days and not leaving perishables out for more than 2 hours. Labeling leftovers with the date they were stored can make those time limits easier to follow.
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Food recalls deserve the same careful cleanup as a rotten container. CDC explains that germs from recalled food can spread to refrigerator drawers or shelves, so discard the recalled item and clean the refrigerator rather than removing only the package. See the CDC refrigerator-cleaning steps for a food recall for its specific sequence.
Frequently Asked Questions
Can I put food back while the refrigerator still smells bad?
Keep food in a cooler at 40°F or below while you continue cleaning or airing the refrigerator. If you cannot keep perishable food cold, do not leave it out for the several days some odor-removal methods may require.
Can I use baking soda to sanitize the refrigerator?
No. Baking soda is part of USDA’s wash for the interior and can also absorb odors when left in a container, but it is not the sanitizing solution. Sanitize the already-washed surfaces with the refrigerator-specific bleach dilution or follow the appliance maker’s instructions.
How long should I keep cooked leftovers in the refrigerator?
USDA FSIS says cooked leftovers generally keep for 4 days, while raw poultry and ground meats generally keep for 1 to 2 days. Discard leftovers that have been held outside safe temperatures; the storage timeline does not make temperature-abused food safe.
What should I do if a refrigerator was submerged in flood water?
Do not try to make a submerged refrigerator safe with an interior wash. FDA says to discard refrigerators submerged in flood water, and USDA FSIS advises removing the door or disabling the latch before disposal so a child cannot become trapped.
