21 October 2026

How to organize a fridge: what goes where, and what temperature it should be

A fridge keeps food safe only when the cold air can move and raw juice cannot fall onto food you will eat cold. The dial is not a temperature. A thermometer is.

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Short answer. Set the fridge to 40°F (4°C) or below, and the freezer to 0°F (−18°C) or below. In the UK the fridge line is 0°C to 5°C; WHO and EFSA say preferably below 5°C. Ready-to-eat food goes up high, raw meat on the bottom on a plate, condiments in the door. Greens want a closed crisper; apples want a vented one. Perishable food gets cold within 2 hours, or 1 hour if the room is above 90°F (32°C).

This is a map of the cabinet, not a promise that one box is still fine. Smell is not a safety test. When you are unsure, throw it out. How long a cooked dish then lasts is a different clock: how long leftovers last.

What goes where

ZonePut hereWhy
DoorKetchup, pickles, jam, hot sauceWarmest spot, and it swings every time the door opens. Sugar and acid slow bacteria.
Top shelfMilk, yogurt, cheese, drinks, food you will eat coldStable cold. Nothing raw should be able to drip onto it.
MiddleLeftovers you will reheat, eggs in the cartonStill cold, and off the door. The carton is not under raw meat.
Bottom shelfRaw poultry lowest, then ground meat, then fish and whole cuts, each on a plateJuice falls downward. It should land on a plate, not on salad.
Closed crisperLettuce, herbs, broccoli, peppersHigh humidity. They wilt when they dry. Keep apples out of this drawer.
Vented crisperApples, pears, ripe stone fruitLower humidity lets ethylene out so it does less damage next door.
FreezerFood you will not eat inside the fridge window0°F (−18°C) pauses growth. Quality still fades. Link the day on the box.

Illinois Extension publishes that shelf order so ready-to-eat food stays above raw meat, and it says the door is warmer, which is why condiments live there. USDA tells you to put raw meat, poultry, and seafood on the bottom shelf, on a plate. FDA says store eggs in the carton in the fridge itself, not in the door. Milk belongs on a shelf for the same reason.

What temperature a fridge should be

SettingFigureWho publishes it
Fridge, United States and Türkiye40°F (4°C) or belowUSDA, FDA, Turkish Ministry of Agriculture and Forestry
Fridge, United Kingdom0°C to 5°CFood Standards Agency
Fridge, WHO and EFSAPreferably below 5°CWHO Five Keys; EFSA
Freezer0°F (−18°C) or belowUSDA and FDA; the ministry says −18°C or below; the FSA says around −18°C
Out of the fridge2 hours, or 1 hour above 90°F (32°C)USDA, FDA, and the same ministry page

A dial marked 1 to 5 is not a reading. USDA’s appliance-thermometer method: put the thermometer in a glass of water in the middle of the fridge, wait 5 to 8 hours, and look for 38 to 40°F. Adjust and wait again. In the freezer, park it between packages for 5 to 8 hours and look for 0 to 2°F. The FSA suggests checking about once a week. Leave the thermometer in. After a power cut it is the only honest witness.

Colder is not automatically better inside the fridge. Food that freezes on the back wall was too cold, and a cabinet packed to the walls cannot move air. FDA says not to crowd the fridge so air cannot circulate. WHO’s European office says the same: overstocking weakens cooling. A full freezer is the opposite case. In an outage, a full freezer holds its temperature longer than a half-empty one.

Drawers, ethylene, and foods that stay out

Michigan State University Extension describes the drawers as humidity controls. Less airflow means higher humidity, which is what leafy greens want. Apples, pears, plums, and cantaloupe keep releasing ethylene after harvest. That gas yellows greens, spots lettuce, and can make carrots bitter. Give the gas its own drawer. A fridge with one drawer still works: bag the greens, and keep the fruit on the other side.

Some foods lose quality in the cold, and a few are a safety choice. The split is below. Cut produce is always a fridge food. FDA says refrigerate anything you bought already cut.

FoodFridge?What the sources actually say
Milk, yogurt, cheeseYes, on a shelfPerishable. The door is the wrong zone.
EggsYes in the US, in the cartonUSDA: 40°F or below, not the door, and not out more than 2 hours. In the EU, Class A eggs are not chilled below 5°C before sale, and the pack tells you to keep them chilled after purchase. Once they are cold, leave them cold.
Chicken, ground meat, fishYes, bottom, on a plateShort fridge windows. The food pages carry the days.
Leftovers, riceYes, shallow and soonWithin 2 hours. Rice is the stricter leftover.
PotatoesEither placeThe UK FSA, after a study reviewed by its toxicity committee, says a home fridge does not materially raise acrylamide-forming sugars compared with a cool, dark place. You may choose either. The quality window is longer in the dark cupboard. Keep them out of the light, and away from onions.
Onions, garlicWhole: usually no. Cut: yesWhole bulbs want cool, dry air. Moisture in a fridge drawer makes them mould. A cut onion is perishable and goes in, covered.
TomatoesCounter for a day or twoThe fridge makes them mealy and dulls flavour. If they will spoil before you eat them, refrigerate. A cut tomato goes in the fridge.
BananasCounter while they ripenCold stops ripening and blackens the peel. A banana that is already soft can go in if you accept the black skin.
BreadNot its usual homeThe fridge dries the loaf. The freezer is the long option. Mould on one slice finishes porous bread.
HoneyNoA sealed jar keeps at room temperature. The fridge encourages crystals, and crystals are not spoilage. CDC: do not feed honey to a child under 1 year.

Myths, and three evenings

  • The door is fine for milk because the jug fits. The door is the warmest part and it warms again at every opening. Condiments are built for that. Milk and chilled eggs are not.
  • A hot pot must sit out until morning. The 2-hour line, or 1 hour in hot weather, is the limit. Ladle into shallow boxes. The Turkish ministry says those boxes can go straight into the fridge. FDA says hot food does not harm the appliance. The UK FSA says cool within 1 to 2 hours and do not put hot food in. Do not leave the pot on the stove overnight either way.
  • The fridge poisons potatoes. That was the old acrylamide warning. The FSA’s current page says a home fridge is an allowed choice next to a cool, dark, dry place. Light and a fully green tuber are the separate problem. The potato page has the windows.
  • If it smells normal after a power cut, it is fine. USDA, FDA, and CDC say never taste food to decide. Harmful bacteria do not always change the smell. Door closed: the fridge keeps food safe for about 4 hours, a full freezer about 48 hours, a half-full freezer about 24. After that, refrigerated meat, poultry, seafood, milk, eggs, and leftovers go out. Frozen food that still has ice crystals, or is at 40°F (4°C) or below, may be refrozen or cooked.

The chicken pack is sitting on the salad. Move it to a plate on the bottom shelf now. Leaves that raw juice already touched are not a salad. Throw them out. Rinsing does not undo that.

You cooked soup at 7:30 p.m. and it is 9 p.m. You are still inside two hours. Portion it, refrigerate it, and write the cook date. The day you mean to finish it is the one worth tracking. Which printed date means safety, and which means quality, is use-by versus best-before.

The power was out for six hours and the door stayed shut. Fridge perishables are past the 4-hour line. Check the freezer thermometer before you decide about frozen food. Six hours does not, by itself, finish a half-full freezer. A reading does.

What spoilage looks like, and a checklist

Sour smell, slime, mould, a swollen tub, or a colour that has clearly changed: throw it out. FDA is plain that food can still make you ill when it looks and smells ordinary, which is why the clock and the temperature matter more than a sniff. Wipe raw-meat spills the same day. Illinois Extension and FDA both tie a clean fridge to slowing Listeria, which can grow in the cold. There is no official “clean it every N weeks” number. Spills are immediate. A full wash belongs on a day you already empty the shelves.

  1. Thermometer in the fridge and the freezer. Fridge at or below 4°C / 40°F, or 0–5°C where that is the local line. Freezer at or below −18°C / 0°F.
  2. Raw poultry, ground meat, and fish on the bottom, on a plate. Ready-to-eat food above them.
  3. Milk, carton eggs, leftovers, and yogurt on a shelf. Door for sauces, pickles, and jam.
  4. Greens in the closed drawer. Apples and pears in the vented one.
  5. New food behind older food. Read whether the date is a safety date or a quality date.
  6. Shallow boxes within 2 hours, or 1 hour above 32°C. Do not cool a large pot on the counter overnight.
  7. Power cut: doors shut. About 4 hours in the fridge, 48 in a full freezer, 24 in a half-full freezer. Do not taste-test.

First in, first out is the habit that makes the map useful. Slide older milk forward when the new bottle arrives. The tracking guide is how that day stays visible, and wasting less starts by eating what is already open. The still-safe check, the thaw timer, and the storage chart use the same published windows. Thaw on a plate on the bottom shelf, not on the counter. The ministry and USDA agree the fridge is the safe thaw.

Questions people ask while the door is open

What temperature should a fridge be?

USDA, FDA, and Türkiye’s Ministry of Agriculture and Forestry say 40°F (4°C) or below. The UK Food Standards Agency says 0°C to 5°C. WHO and EFSA say preferably below 5°C. The freezer is 0°F (−18°C) or below. Confirm it with a thermometer, not the dial.

Why is the refrigerator door the warmest spot?

It is outside the main cabinet and it warms every time you open the door. Keep ketchup, pickles, and jam there. Keep milk, leftovers, and chilled eggs on a shelf.

What should not go in the fridge?

Whole dry onions and garlic, bananas that are still ripening, bread you care about, and sealed honey usually stay out, for quality. Tomatoes prefer the counter for a day or two. Potatoes may go in or stay in a cool dark place; the UK FSA allows both. Cut food goes in. A safety date on a pack still wins.

How long is food safe during a power outage?

If the door stays closed, USDA and CDC say about 4 hours for the fridge, about 48 hours for a full freezer, and about 24 hours for a half-full freezer. After the fridge line, throw out perishable refrigerated food. Frozen food with ice crystals, or at 40°F (4°C) or below, may be refrozen or cooked. Do not taste it to decide.

Can I put hot food straight into the fridge?

Do not leave it out to cool for hours. Split it into shallow containers within 2 hours, or 1 hour above 90°F (32°C). The Turkish ministry says those containers can go straight in. FDA says this does not harm the fridge. The UK FSA prefers you cool them within 1 to 2 hours before they go in.

Which drawer is for lettuce and which is for apples?

Lettuce, herbs, and broccoli want the high-humidity drawer, vent closed. Apples, pears, and other ethylene producers want the vented drawer, so the gas is not sitting on the greens.

Sources