USDA gives different minimum-temperature guidance for ground beef and whole beef cuts because grinding changes where bacteria can be located.
Whole cuts are different
On an intact steak or roast, contamination is primarily a surface concern. USDA recommends cooking whole beef steaks, chops, and roasts to at least 145°F and allowing a three-minute rest.
Grinding mixes the surface throughout the meat
When beef is ground, any bacteria present on the surface can be mixed through the interior. That is why color alone is not a reliable safety test for a hamburger.
USDA recommends cooking ground beef to 160°F as measured with a food thermometer.
USDA safe minimum temperature chart
Use a thermometer
A burger can brown before it reaches a safe internal temperature, and a safely cooked burger may still show some pink depending on conditions.
For farm beef, the same food-safety rules apply as any other raw beef. Quality starts with how the cattle are raised and the beef is handled, but safe cooking still matters at home.
