The most widely recommended practice for food rotation is the FIFO method: First In, First Out. This means the oldest items in your refrigerator, freezer, or pantry should always be used before newer ones. FIFO reduces waste, keeps food at peak quality, and lowers the risk of foodborne illness from items sitting too long in storage.
How the FIFO Method Works
FIFO is straightforward. Label every item with the date you purchased or stored it. When you put new items away, place them behind or beneath older ones so the oldest food is always the most accessible. When you’re ready to cook or eat, grab from the front or top first. Michigan State University Extension summarizes it simply: label your food with storage dates and put older foods in front so you use them first.
This applies everywhere food is stored: your kitchen pantry, refrigerator, freezer, and any secondary storage like a basement shelf or garage freezer. In commercial kitchens and restaurants, FIFO is a regulatory expectation. But the same logic protects a household just as well. A can of soup bought six months ago should be in front of one bought last week. A package of chicken from Monday goes in front of the package from Wednesday.
Why Date Labels Don’t Tell the Whole Story
Many people rely on printed dates to decide whether food is still good, but those dates are less definitive than most assume. Federal regulations do not require date labels on any food product except infant formula. The dates you see on packages are manufacturer suggestions about quality, not safety.
A “Best if Used By” date indicates when a product will be at its best flavor or quality. A “Sell-By” date is there for the store’s inventory management, not for you. A “Use-By” date is the manufacturer’s recommendation for peak quality. None of these are safety dates. The only federally mandated expiration date in the United States applies to infant formula, where the date ensures the product still contains the nutrient levels listed on the label.
This is exactly why FIFO matters so much. Since printed dates aren’t reliable safety indicators, your own labeling and rotation system becomes the most practical tool you have. Writing the purchase or storage date on items with a marker gives you a clear timeline that doesn’t depend on inconsistent manufacturer labels.
Shelf Life Guidelines for Common Pantry Items
Knowing roughly how long foods last helps you rotate with confidence. Store all shelf-stable items in a cool, dry place, ideally below 85°F. Avoid spots near the stove, under the sink, or in damp basements.
- Low-acid canned goods (meat, poultry, soups, vegetables like corn, beans, and carrots): 2 to 5 years unopened; 3 to 4 days in the refrigerator once opened.
- High-acid canned goods (tomatoes, citrus juices, fruits, pickles, sauerkraut): 12 to 18 months unopened; 5 to 7 days refrigerated after opening.
- Rice and dried pasta: 2 years unopened; 3 to 4 days in the refrigerator after cooking.
- Home-canned foods: 12 months. Boil 10 minutes for high-acid foods and 20 minutes for low-acid foods before eating.
- Commercial jerky: 12 months. Homemade jerky lasts only 1 to 2 months.
- Tuna and seafood in retort pouches: 18 months; 3 to 4 days refrigerated once opened.
These ranges assume proper storage conditions. Heat, moisture, and light all accelerate degradation. A can of beans stored in a cool pantry for three years is fine. The same can stored in a hot garage may not be.
Refrigerator Shelf Order Matters
Food rotation isn’t just about dates. Where you place items in the refrigerator directly affects safety, because drips and leaks from raw proteins can contaminate other foods. The standard shelf hierarchy, used in both commercial and home kitchens, places foods with the highest required cooking temperatures on the lowest shelves.
From top to bottom, the recommended order is: ready-to-eat foods, produce, and cooked dishes on the upper shelves; fish and eggs below that; whole cuts of beef and pork next; ground meat below them; and raw poultry (chicken, turkey, duck) on the very bottom shelf. This arrangement ensures that if raw chicken leaks, it drips onto nothing else. If ground beef drips, it can’t reach your salad.
Keeping food in sealed containers or wrappings adds another layer of protection. Clean up any spills in the refrigerator immediately, because the longer moisture sits on shelves, the more opportunity bacteria have to spread between items.
The Bacterial Risks of Poor Rotation
The practical consequence of ignoring food rotation is foodborne illness. The FDA warns that the longer foods sit in the refrigerator, the greater the chance that Listeria can grow, especially if your refrigerator runs above 40°F. Unlike most bacteria, Listeria thrives at refrigerator temperatures, which makes it a particular concern for forgotten leftovers and deli meats pushed to the back of the shelf.
Other organisms of concern include Salmonella, E. coli O157:H7, and C. botulinum (the bacterium responsible for botulism). These are commonly present in raw or undercooked meat, poultry, seafood, eggs, and on unwashed fruits and vegetables. Proper rotation doesn’t eliminate these organisms, but it limits the window during which they can multiply to dangerous levels. A container of leftover soup used within three days carries far less risk than one rediscovered after two weeks.
Putting FIFO Into Practice at Home
You don’t need a commercial labeling system. A roll of masking tape and a permanent marker work perfectly. Write the date on anything that goes into the fridge or freezer, and on pantry items where the purchase date isn’t obvious. When unloading groceries, pull older items forward before sliding new ones into place. This takes about 30 seconds per shelf and prevents the common problem of duplicates hiding behind each other.
For freezer storage, FIFO is especially important because frozen foods can look identical after a few weeks. A piece of chicken frozen last month looks the same as one frozen six months ago. Without dates written on the packaging, you have no way to know which should be used first. Freezing pauses bacterial growth but doesn’t reset the clock on quality. Proteins lose texture and develop freezer burn over time, so older items should always move to the front.
A quick weekly check helps the system work. Glance through the refrigerator and pantry once a week, move anything approaching the end of its useful life to a visible spot, and plan meals around those items first. This simple habit cuts food waste significantly and keeps your household eating the safest, freshest food available.