Yes, some date-labeled foods stay safe after the date, but high-risk items and infant formula should not be eaten past labeled dates.
Dates on packages confuse shoppers. Some mark quality, not danger. Others tie to storage. This guide shows what each date means, when to keep or toss, and how to store food safely while cutting waste.
What Date Words Actually Mean
Manufacturers print several phrases. They don’t all carry the same weight. Two agencies set the tone in the United States. The U.S. Department of Agriculture explains the intent behind open dating on meat and poultry, and the Food and Drug Administration shares broader labeling guidance across the grocery aisle. The short read: most printed dates describe flavor and texture, not safety, with a firm exception for infant formula.
| Label On Package | Meaning In Practice | Safety Impact |
|---|---|---|
| Best If Used By | Peak taste window set by the maker. | Quality may fade after the date; product can still be safe if handled and stored well. |
| Use By | Last day for best quality; common on chilled foods. | Not a blanket safety cut-off, except for infant formula where the date ties to nutrition and safety. |
| Sell By | Stock-rotation cue for stores. | Not a consumer safety deadline. |
| Freeze By | Suggests when to freeze for best texture. | Freezing stops growth of microbes; quality change is the main shift. |
| No Date | Shelf-stable items often skip dates. | Safety rests on package integrity and storage, not a printed day. |
For plain-language details from the source, see the USDA’s page on food product dating. Retailers use “sell by” to rotate stock; shoppers still have time at home if the cold chain stayed intact and the package looks sound.
Expired Food Safety: When Dates Matter
Printed dates turn risky when time-temperature abuse, damaged packaging, or certain ready-to-eat foods enter the mix. Listeria can grow in the fridge and can’t be seen, smelled, or tasted, so sensory checks fall short. Public-health guidance confirms this behavior.
Risk changes by product. Canned goods with sound seams and no bulging often last years past a quality date. Dry pasta and rice stay stable in dry, cool storage. Fresh meat, cut fruit, and prepared salads carry short safe windows once opened. Leftovers hold for only a few days under 40°F (4°C), and freezing stops growth but doesn’t fix spoilage already underway.
Red Flags That Override Any Date
- Swollen, leaking, or rusty cans.
- Popped seals, broken vacuum, or hissing on opening.
- Off odors, slimy surfaces, or unexpected fizz in non-carbonated foods.
- Mold on high-moisture foods, not just on the surface.
- Packages left in the temperature “danger zone” longer than two hours.
When A Past-Date Item Is Usually Fine
Plenty of pantry goods stay safe long after a date if stored well and unopened: canned tomatoes, beans, evaporated milk, shelf-stable broth, dry cereal, oats, spices, white rice, and baking mixes. Flavor may fade and textures can change, but intact packaging and clean storage are the anchors.
How To Read Dates With Real-World Examples
Milk And Yogurt
Pasteurized milk often carries “sell by” or “best if used by.” If kept cold, it can taste fine for several days beyond that print. Yogurt tends to hold longer. Sour smell, curdling, or puffed lids mean discard.
Canned Foods
Low-acid cans like vegetables and meats keep far longer than high-acid ones like tomatoes or pineapple. Both stay safe for long periods when seams stay tight and cans look normal. Bulging or spurting on opening is a discard cue.
Ready-To-Eat Meats And Soft Cheeses
These items carry higher risk in the fridge. Open packages have short windows. Heat deli meats until steaming hot.
Storage Times That Actually Protect You
Cold storage buys time. The federal cold-food chart gives simple ranges that balance taste and safety. Here’s a compact view for common items. When in doubt, follow the shorter end after opening. Freezing extends quality for months; label packages with the date and portion size so you thaw only what you’ll use.
| Food | Fridge Days | Freezer Months |
|---|---|---|
| Leftovers (Cooked) | 3–4 | 2–3 |
| Ground Meat (Raw) | 1–2 | 3–4 |
| Poultry (Raw) | 1–2 | 9–12 |
| Steaks/Chops (Raw) | 3–5 | 4–12 |
| Deli Meat (Opened) | 3–5 | 1–2 |
| Milk | 5–7 after opening | 1–3 |
| Yogurt | 7–14 | 1–2 |
| Soft Cheese (Opened) | 1 week | Not recommended |
View the full federal chart on cold-food storage times. Leftovers hold a 3–4 day window in the fridge. Sticking to these windows matters more than the date once a package is open.
Why Smell Tests Don’t Catch Every Risk
Pathogens don’t always announce themselves. Listeria can grow at refrigerator temperatures without producing strong odors. Relying only on sight or smell misses that threat. People who are pregnant, seniors, and those with weaker immune systems face more risk from these hidden hazards. For them, cold cuts, smoked fish, raw milk cheeses, and unheated hot dogs need extra care or a full reheat.
Simple Rules For Safer Decisions
Start With The Package
If the seal is broken, toss it. Bulging or leaking cans go too. A domed, loose lid is also a discard. Labels can’t override damage.
Track Time After Opening
Write the open date with a marker. Many chilled items need to be eaten within a few days. The printed day no longer controls the clock once air hits the food.
Keep Cold Food Cold
Use a fridge thermometer. Aim for 40°F (4°C) or lower, and 0°F (-18°C) for the freezer. Chill leftovers in shallow containers within two hours.
Use The Freezer As A Pause Button
Freeze before quality slides. This stops growth of microbes. Thaw in the fridge, in cold water that you change, or in the microwave right before heating.
Reheat Ready-To-Eat Meats When In Doubt
Steam-hot reheating knocks down Listeria on foods like deli slices and hot dogs. This is especially wise for people at higher risk.
Special Cases That Need A Hard No
Infant Formula Past The Date
“Use by” on formula ties to nutrition and microbiological stability. Past that date, the maker does not vouch for safety or nutrient delivery. Don’t serve it. Pick a fresh container with a clean seal.
Home-Canned Goods With Any Seal Issue
Low-acid home canning must follow tested recipes. If a jar leaks, swells, or spurts on opening, discard the contents without tasting.
Foods Left In The Danger Zone
Two hours between 40°F and 140°F (4–60°C) is the general limit. One hour in hot weather. A printed date can’t rescue food left warm on a counter or in a car.
Pantry Planning That Cuts Waste
A little tracking trims waste and risk. Keep a simple shelf list for short-life items, rotate new stock behind older packages, and group open jars in a “use soon” bin. Build a freezer map on the door so items don’t get lost.
Quick Myths Versus Facts
“Smell Will Tell Me.”
Not always. Some pathogens grow without clear odors. That’s why time and temperature rules exist.
“Freezing Kills All Germs.”
Freezing stops growth. It doesn’t sterilize. Once thawed, the clock starts again and any surviving microbes resume activity.
Putting It All Together
Date words guide quality. Safety rests on storage, time after opening, and package condition. Use the tables above to decide fast. A cheap digital thermometer gives you real numbers instead of guesses and helps keep dairy colder and safe. Scan labels, check seals, track days in the fridge, and lean on the freezer. When stakes are high for the eater, reheat risky ready-to-eat items or choose lower-risk options. Keep a simple note of what you opened and when on the fridge door for easy checks.