The best way to store food to prevent waste is to put each item where it keeps longest, keep the fridge at 40°F (4°C) or below, and make anything close to its limit impossible to miss. Most food that gets thrown away did not go off because it was old. It went off early because it was stored in the wrong place: in the fridge when it needed the counter, in the fruit bowl when it needed the fridge, or next to something quietly gassing it into premature ripeness. Three changes fix most of it: keep ethylene-producing fruit away from ethylene-sensitive vegetables, check the fridge temperature with a thermometer, and stop using the fridge door for anything that matters.
It is worth the effort. The US EPA’s 2025 estimate of the cost of food waste puts the average American’s uneaten food at about 256 pounds (116 kg) a year, worth $728, or roughly $2,913 for a household of four. That is about 11 percent of what a typical consumer spends on food, and meat is the most expensive category thrown away.
Where should each food be stored?
| Item | Where | Why |
|---|---|---|
| Bananas, avocados, tomatoes, stone fruit | Counter, until ripe | Cold ruins texture and flavor; chill only once ripe |
| Potatoes, onions, garlic, winter squash | Cool, dark, ventilated cupboard | Fridge cold turns potato starch to sugar |
| Potatoes and onions | Not together | Onions speed potato sprouting |
| Leafy greens, herbs (except basil) | Fridge crisper, loosely wrapped | Need humidity and cold |
| Basil | Counter, stems in water | Blackens below about 50°F (10°C) |
| Berries | Fridge, unwashed, shallow container | Washing before storage causes mold |
| Mushrooms | Fridge, paper bag | Plastic traps moisture and makes them slimy |
| Carrots, celery | Fridge, in water or wrapped | They wilt from dehydration, not age |
| Bread | Counter or freezer, never fridge | Refrigeration speeds staling |
| Eggs | Fridge, main shelf, in the carton | Door temperature swings shorten life |
| Milk, raw meat, leftovers | Fridge, back of a shelf; raw meat on the bottom | Coldest, most stable spot; no drips onto other food |
| Opened condiments | Fridge door | Salt, sugar or acid make them tolerant of swings |
Two layout rules sit behind the table. Raw meat, poultry and fish go on the lowest shelf, in a dish or their packaging, so juices cannot drip onto food that will not be cooked, as USDA food safety guidance advises. And ready-to-eat food, including leftovers, goes on upper shelves where it is visible.
For how long each refrigerated food lasts once it is in the right place, see our chart on how long food lasts in the fridge.
Which fruits and vegetables should not be stored together?
Some fruits release ethylene gas as they ripen. It is a plant hormone, and it tells nearby produce to ripen too, which is useful when you want an avocado ready by Thursday and destructive when a bag of apples sits beside your salad greens.
Strong producers: apples, bananas, avocados, tomatoes, pears, peaches, plums, apricots, melons, mangoes.
Highly sensitive: leafy greens, lettuce, broccoli, cucumbers, carrots, asparagus, green beans, berries, herbs.
The simplest workable system is to keep producers in the fruit bowl on the counter and sensitive items in the fridge. If your fridge has two crisper drawers, give one to fruit and one to vegetables, and set the fruit drawer’s vent open (lower humidity) and the vegetable drawer’s vent closed (higher humidity) where the drawers have adjustable vents.
You can also use ethylene on purpose. Putting an unripe avocado or a hard pear in a paper bag with a banana speeds ripening, and taking ripe fruit out of the bowl slows down everything left in it.
What temperature should your fridge be?
None of the rest matters if your fridge is running warm. The USDA target is 40°F (4°C) or below for the fridge and 0°F (-18°C) for the freezer. Fridge dials are often unmarked or inaccurate, so the reliable check is an inexpensive standalone appliance thermometer left on a middle shelf overnight. If it reads above 40°F, turn the dial one step colder and check again the next day.
| Rule | USDA guidance |
|---|---|
| Fridge temperature | 40°F (4°C) or below |
| Freezer temperature | 0°F (-18°C) |
| Refrigerate perishables and leftovers | Within 2 hours; within 1 hour above 90°F (32°C) |
| Cooked leftovers in the fridge | 3–4 days |
| Food kept frozen at 0°F | Safe indefinitely; storage times are for quality only |
Two related habits: do not overpack the fridge, because cold air needs to circulate, and divide large batches of hot food into shallow containers so they cool quickly rather than warming everything around them.
Why you should stop using the fridge door
The door is the warmest part of the fridge and its temperature swings every time it opens. It is also where most people keep milk and eggs, the two things that suffer most from it. USDA guidance is to store eggs in their original carton on a shelf, not the door: the carton buffers temperature changes and stops eggs absorbing odors through their porous shells.
Put condiments, which are preserved by salt, sugar, vinegar or acid, in the door instead. They are the only things that genuinely do not care.
Should food be stored in the original packaging?
Usually yes, and people undo good design by transferring things. Bagged salad comes in film engineered to hold a specific gas mix. Mushrooms are sold in breathable containers. Eggs come in a carton that buffers temperature and blocks odor. The main exception is anything opened: once the seal is broken, an airtight container beats a folded-over bag, and a clear one shows you what is inside.
Is food safe to eat after the best-by date?
Often, yes, and misreading the date is one of the easiest kinds of waste to fix. According to the USDA Food Safety and Inspection Service, product dating is not required by federal law except on infant formula, and except for formula the dates are not safety indicators. They are the manufacturer’s estimate of peak quality.
| Label | What it means | Safe after the date? |
|---|---|---|
| Best if Used By / Before | Peak flavor or quality | Usually, if stored properly and no signs of spoilage |
| Sell-By | How long the store should display it | Yes; it is an inventory date, not a safety date |
| Use-By | Last recommended date for peak quality | Usually, except on infant formula |
| Freeze-By | When to freeze for best quality | Yes, if frozen by that date |
FSIS recommends manufacturers use “Best if Used By” because shoppers read it as a quality date. The real test is the food itself: an off smell, slime, or mold on soft food means it goes, whatever the label says. Dates also stop counting once food is frozen, since freezing keeps it safe indefinitely.
Freeze earlier than you think
The freezer is the most underused waste-prevention tool in the kitchen, mostly because people treat it as long-term storage rather than a pause button.
- Bread freezes well and toasts from frozen.
- Milk freezes; shake well after thawing.
- Herbs freeze in oil in ice cube trays.
- Cooked rice, soups, stews and sauces freeze well in flat, labeled portions.
- Bananas going brown: peel, freeze, use for baking or smoothies.
Freezing does not improve food, so freeze at peak rather than the day before it turns, and write the date on the bag.
The habit that does more than any container
Keep a use-first box: a single labeled shelf or tray at eye level where anything approaching its limit goes. Check it before you cook, and before you shop. Most household food waste is not a knowledge problem; it is a visibility problem. Things rot at the back because nobody sees them.
Pair it with a first-in, first-out habit: when you unpack shopping, move older stock to the front rather than putting new items there.
What to do with the scraps you can’t avoid
Some waste is unavoidable: peelings, stalks, cores, coffee grounds. That material does not have to go in the trash. Starting a compost heap turns it into something useful in a few months, and our guide to food waste recycling covers every other route, including the ones that take meat and dairy.
Storing food properly is still the higher-leverage move. Composting a wilted lettuce is better than throwing it out; not buying a lettuce that wilts is better than either.