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Food safety basics

Wash hands for 20 seconds. Use one cutting board for raw meat and another for everything else. Check doneness with a thermometer: 165°F for chicken and leftovers, 160°F for ground meat, 145°F for steaks and fish. Refrigerate within 2 hours (1 hour above 90°F), keep the fridge at 40°F or below, and eat leftovers within 3 to 4 days. Never thaw meat on the counter.

Easy15 min to readFree (a food thermometer helps)Checked October 2, 2026

What to know

  1. Wash your hands the right way. Use plain soap and water, and scrub the backs of your hands, between your fingers and under your nails for at least 20 seconds. Humming "Happy Birthday" twice is about right. Source: FoodSafety.gov Wash before, during and after cooking, and after touching raw meat, raw eggs or garbage, or using the toilet. Source: FoodSafety.gov
  2. Keep raw meat away from everything else. Use one cutting board for raw meat, poultry and seafood, and another for produce and anything that won't be cooked. Use separate plates for raw and cooked food. Source: FoodSafety.gov Bag raw meat separately at the store, and store it at home in containers or sealed, leakproof bags. Source: FoodSafety.gov
  3. Don't rinse raw meat, poultry or eggs. Washing them spreads germs around your sink and counter. Source: FoodSafety.gov Do rinse fruits and vegetables under running water, without soap. Pre-washed bagged greens don't need washing again. Source: FoodSafety.gov
  4. Cook to a safe temperature, and check it. Put a thermometer in the thickest part of the food, not touching bone or fat. Source: FoodSafety.gov Use the temperature chart below.
  5. Keep hot food hot. Food sitting out should stay at 140°F or above. Source: FoodSafety.gov Bacteria grow fastest between 40°F and 140°F, the "danger zone". Source: USDA
  6. Refrigerate within 2 hours. Never leave perishable food out more than 2 hours, or 1 hour if it's above 90°F, like in a hot car or at a summer picnic. Source: FoodSafety.gov Split big batches, like a pot of soup, into shallow containers so they cool quickly. Hot food can go straight into the fridge. Source: USDA
  7. Set your fridge and freezer. The fridge should be 40°F or below and the freezer 0°F or below. Use an appliance thermometer to check. Source: FoodSafety.gov
  8. Thaw safely. Thaw in the fridge, in cold water, or in the microwave. Never on the counter. Source: USDA A pound of ground meat or chicken breasts takes a full day in the fridge. In cold water, keep it in a leak-proof bag and change the water every 30 minutes, and a 1-pound package may thaw in an hour or less. Source: USDA Cook food right after thawing it in cold water or the microwave. You can also cook meat straight from frozen. Source: USDA
  9. Eat leftovers within 3 to 4 days, or freeze them. Frozen leftovers stay safe indefinitely but taste best within 3 to 4 months. Reheat leftovers to 165°F. Source: USDA
Watch out Don't wash raw chicken or other meat. It sprays germs around your sink and counter, and cooking to the right temperature is what makes it safe. Source: FoodSafety.gov

Safe cooking temperatures

Measure in the thickest part with a food thermometer. From FoodSafety.gov's chart. Source: FoodSafety.gov

FoodCook to
Chicken and turkey, all cuts, including ground165°F
Leftovers and casseroles165°F
Ground beef, pork and sausage (burgers)160°F
Egg dishes (frittata, quiche)160°F
Beef, pork or lamb steaks, roasts and chops145°F, then rest 3 minutes
Fish145°F, or until it's no longer see-through and flakes with a fork
Shrimp, crab, scallopsUntil pearly or white and opaque
EggsUntil yolk and white are firm

How long it keeps in the fridge

At 40°F or below. From FoodSafety.gov's cold storage chart and USDA. Source: FoodSafety.govUSDA

FoodFridge
Raw ground meat or ground poultry1 to 2 days
Raw chicken or turkey1 to 2 days
Raw steaks, chops, roasts3 to 5 days
Raw fish1 to 3 days for fatty fish like salmon
Lunch meat, opened or deli-sliced3 to 5 days
Hot dogs, opened1 week
Cooked leftovers, soups and stews3 to 4 days
Raw eggs in the shell3 to 5 weeks

Freezing at 0°F keeps food safe indefinitely. Freezer times on charts are for quality only.

See a doctor if you have

  • Bloody diarrhea. Source: CDC
  • Diarrhea that lasts more than 3 days. Source: CDC
  • A fever over 102°F. Source: CDC
  • Vomiting so often you can't keep liquids down. Source: CDC
  • Signs of dehydration: peeing very little, a dry mouth and throat, or feeling dizzy when you stand up. Source: CDC

If it doesn't work

  • If food has been sitting out and you aren't sure for how long, throw it out. When in doubt, throw it out, and never taste food to decide whether it's safe. Source: FoodSafety.gov
  • If you forgot to thaw dinner, cook it from frozen. It takes longer, but it's safe. Source: USDA
  • If you have food poisoning, drink plenty of fluids to prevent dehydration, and watch for the warning signs above. Source: CDC

Good to know

It's common

An estimated 1 in 6 Americans get sick from food poisoning each year, and 128,000 are hospitalized. Source: FoodSafety.gov

Symptoms can take days

Some germs make you sick within hours, others take days, so the last thing you ate isn't always the culprit. Source: CDC

Look anything up

FoodSafety.gov's cold storage chart links to the USDA's FoodKeeper, with storage tips for more than 650 foods and drinks. Source: FoodSafety.gov

Keep eggs inside

Keep eggs in their carton on a main shelf, not in the door. Source: FoodSafety.gov

Sources

  1. FoodSafety.gov 4 steps to food safety
  2. FoodSafety.gov Safe minimum internal temperatures
  3. FoodSafety.gov Cold food storage chart
  4. U.S. Department of Agriculture, Food Safety and Inspection Service Danger zone (40°F to 140°F)
  5. U.S. Department of Agriculture, Food Safety and Inspection Service Leftovers and food safety
  6. U.S. Department of Agriculture, Food Safety and Inspection Service The big thaw: safe defrosting methods
  7. Centers for Disease Control and Prevention Food poisoning symptoms
  8. FoodSafety.gov Food safety during a power outage

Lesson H2.4 · Last checked October 2, 2026 against the sources listed.

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