For roast pork or ham, which option accurately lists the full set of safe time-temperature combinations?

For roast pork or ham, which option accurately lists the full set of safe time-temperature combinations?

• A. 130 Degrees for 112 Minutes, 140 Degrees for 12 Minutes, 145 Degrees for 4 Minutes
• B. 130 Degrees for 112 Minutes
• C. 140 Degrees for 12 Minutes
• D. 165 Degrees for Less Than One Second

Answer: (A)

Time and temperature work together to inactivate bacteria in pork and ham. The same level of safety can be achieved either by cooking longer at a lower temperature or by cooking briefly at a higher temperature. That’s why there isn’t just one correct path—the full set shows multiple temperature–time pairs that produce the same protective effect. The complete safe set includes four combinations: 130°F for 112 minutes, 140°F for 12 minutes, 145°F for 4 minutes, and 165°F for less than one second. Each of these lines represents an equivalent level of bacterial kill, so you could reach safety by any of these routes depending on what you can practically apply with your equipment. Other options only present one or two parts of the full set, which isn’t enough to capture all the valid time–temperature routes to safety.

Time and temperature work together to inactivate bacteria in pork and ham. The same level of safety can be achieved either by cooking longer at a lower temperature or by cooking briefly at a higher temperature. That’s why there isn’t just one correct path—the full set shows multiple temperature–time pairs that produce the same protective effect.

The complete safe set includes four combinations: 130°F for 112 minutes, 140°F for 12 minutes, 145°F for 4 minutes, and 165°F for less than one second. Each of these lines represents an equivalent level of bacterial kill, so you could reach safety by any of these routes depending on what you can practically apply with your equipment.

Other options only present one or two parts of the full set, which isn’t enough to capture all the valid time–temperature routes to safety.