What Temperature Kills Salmonella? | The One Number You Need

Salmonella is killed instantly at 165°F (73.9°C), the official “insta-kill” temperature for poultry, leftovers, and casseroles; lower temperatures also work if held long enough.

A thermometer is the only reliable way to know your food is safe — color and texture lie. This guide covers the critical number for each food type, the shorter holds that work at lower heat, and the tool you need to confirm the job is done.

The One Number That Covers Everything

The easiest rule to remember: 165°F for poultry, leftovers, casseroles, and any dish containing both eggs and meat. At this temperature, Salmonella dies in less than one second — it’s the “insta-kill” standard from the USDA Food Safety and Inspection Service. Ground meats need 160°F, and whole cuts of beef, pork, or lamb require 145°F with a three-minute rest. That rest is not optional; the temperature must stay high long enough to finish the kill.

Lower Temperatures With Longer Holds

If you are slow-roasting, sous-viding, or braising, Salmonella can be eliminated at lower temperatures — but only if the food stays at that heat for a verified duration. The USDA’s alternative time-temperature combinations for a full pathogen kill include:

• 161°F: Hold for 10 seconds
• 155°F: Hold for 45 seconds
• 150°F: Hold for about 3 minutes
• 140°F: Hold for 35 to 83 minutes depending on the food
• 131°F: Hold for 1 hour

A standard home roast or pan-seared chicken breast does not stay at those internal temps long enough; stick with the higher “instant kill” numbers unless you are actively monitoring the hold time.

Why Poultry Needs a Higher Number Than Beef

In whole cuts of beef, pork, or lamb, bacteria tend to live only on the surface. A sear that reaches 145°F on the outside kills surface pathogens, and the interior stays safe. Poultry is different — Salmonella can exist anywhere inside the muscle, not just on the surface. The entire piece of meat must reach at least 165°F (or a validated lower hold) to guarantee safety. This is why chicken breasts and turkey thighs cook to a higher internal number than a steak.

How To Verify Salmonella Is Killed

Visual signs — color, juices running clear, firmness — are unreliable. A study by the USDA found that one in four burgers turned brown before reaching the safe temperature, and some stayed pink after hitting the target. Only a digital food thermometer placed in the thickest part, away from bone and gristle, gives you a real answer.

For poultry, probe the center of the breast or the inner thigh. For roasts and whole cuts, check the center and let it rest for three minutes after pulling from heat. The temperature will stay steady or rise slightly during rest, holding the kill zone long enough to finish the job. The USDA’s official safe minimum internal temperature chart is the reference for every number on this page.

The Danger Zone Rule

Cooking kills Salmonella in the food, but it does nothing for surfaces, utensils, or cutting boards. Never wash raw poultry — that sprays bacteria across your sink and countertops. And once food is cooked, it must not sit between 40°F and 140°F for more than two hours (one hour if the room is above 90°F). That zone is where surviving bacteria grow rapidly, undoing the safety of the cooking step.

FAQs

Can I kill Salmonella by freezing it?

No. Freezing stops Salmonella from growing, but it does not kill it. The bacteria can survive for years in frozen or low-moisture foods like peanut butter. Only cooking to the required internal temperature eliminates the pathogen.

Is 145°F safe for chicken if I hold it longer?

For whole-muscle poultry, 145°F must be held for at least 8.5 minutes to achieve the same kill as 165°F. Few home cooks can maintain a steady 145°F internal temp for that long without drying out the meat, which is why the standard recommendation stays at 165°F.

Does resting meat after cooking actually kill more bacteria?

Yes, for whole cuts cooked to 145°F. The USDA requires a three-minute rest because the internal temperature either stays constant or rises slightly, extending the time the meat stays in the kill zone. For poultry at 165°F and ground meats at 160°F, no rest is needed.