Ground Beef & Hamburger Internal Temperature

The USDA sets one safe minimum internal temperature for all ground beef, 160°F (71°C), whether you are making burgers, meatballs, meatloaf, or taco meat. That is different from a whole steak, which is safe at 145°F (63°C) plus a three-minute rest. The gap between those numbers is not about taste. It is about where bacteria live.

On an intact cut like a steak or roast, harmful bacteria such as E. coli O157:H7 stay on the outside surface. A hot pan or grill sears that surface and kills them, so a rare interior is safe to eat. Grinding changes everything. It takes whatever was on the surface, and on the equipment, and blends it throughout the entire batch of meat. Now the center of your burger can carry the same pathogens the surface once did, which is why the whole patty has to reach 160°F (71°C). That is a safety floor, not a doneness preference: 160°F is roughly medium, and cooking further to well-done is a matter of taste, not safety.

How to use this and where to measure

A food thermometer is the only reliable way to know a burger is done, because color is not. Some patties turn brown before they hit 160°F (71°C), and others stay pink inside even when fully cooked, especially if the meat was frozen or has a higher pH. Do not trust the look. Trust the number.

1. Insert the probe through the side of the patty, sliding it horizontally toward the middle so the tip sits in the thickest part.
2. Keep the tip in the center of the patty, away from the pan or grill grates, which read hotter than the meat.
3. Check the thickest burger in the batch, and check more than one when you are cooking a big load.
4. Clean the thermometer with hot, soapy water between checks so you do not reintroduce bacteria.

• Keep ground beef cold, at 40°F (4°C) or below, until it hits the heat; grinding gives bacteria more surface area to multiply on.
• Do not judge doneness by color or juice. USDA dropped the old cook-until-juices-run-clear advice for exactly this reason.
• Calibrate an instant-read thermometer in ice water, where it should read 32°F (0°C), so your 160°F (71°C) reading is trustworthy.
• You can cook burgers straight from frozen, but allow extra time and still verify 160°F (71°C) in the center.
• Serving young kids, pregnant people, older adults, or anyone with a weakened immune system? Hold cooked patties at 140°F (60°C) or above and do not leave them out longer than 2 hours (1 hour above 90°F / 32°C).
• Use separate plates and utensils for raw and cooked patties to avoid cross-contamination.

Can I eat a medium-rare hamburger?

Not safely. Medium-rare is around 130 to 135°F (54 to 57°C), well below the 160°F (71°C) needed to kill the bacteria that grinding spreads through the patty. Only a whole, intact steak can be cooked rare or medium-rare safely, because its interior was never exposed to surface bacteria. Restaurants may serve an undercooked burger only with a consumer advisory, and it carries real risk.

My burger is still a little pink but the thermometer says 160°F. Is it safe?

Yes. Color is not a reliable doneness gauge. Some fully cooked ground beef stays pink because of its pH, added ingredients, or being cooked from frozen. If a food thermometer reads 160°F (71°C) in the center, the burger is safe to eat regardless of the pink.

Why are turkey and chicken burgers 165°F instead of 160°F?

All poultry, whole or ground, has a higher safe minimum of 165°F (74°C) because of pathogens like Salmonella and Campylobacter that are common in poultry. So turkey and chicken burgers need 165°F (74°C), one step above the 160°F (71°C) for ground beef.

Does ground beef need a rest time like a steak?

No. The three-minute rest applies to whole cuts of beef, pork, veal, and lamb held at 145°F (63°C). Ground beef has no rest requirement. Once the center reaches 160°F (71°C), it is done and safe.

Where exactly do I put the thermometer in a thin patty?

Slide the probe in through the side, horizontally, so the tip reaches the center of the patty instead of poking through the top. This keeps the sensing tip in the meat and away from the hot grill or pan, giving you an accurate center reading.