A roast beef in the oven must reach what temperature for at least 4 minutes during cooking?

A roast beef in the oven must reach what temperature for at least 4 minutes during cooking?

• A. 135°F for 2 minutes
• B. 145°F (63°C) for at least 4 minutes
• C. 155°F for 6 minutes
• D. 165°F for 1 minute

Answer: (B)

The key idea is that safe cooking for beef roasts depends on both reaching a minimum internal temperature and holding it for a certain period to reduce harmful bacteria. For a roast beef, the standard requirement is to reach 145°F (63°C) and hold that temperature for at least 4 minutes during cooking. This combination ensures enough heat exposure to pasteurize the meat and make it safe to eat. Other options don’t fit this specific safe-time-temperature pairing: 135°F for 2 minutes is not high enough to ensure safety, 155°F for 6 minutes uses a higher temperature but isn’t the required 4-minute hold at 145°F, and 165°F for 1 minute doesn’t match the standard roast beef guideline.

The key idea is that safe cooking for beef roasts depends on both reaching a minimum internal temperature and holding it for a certain period to reduce harmful bacteria. For a roast beef, the standard requirement is to reach 145°F (63°C) and hold that temperature for at least 4 minutes during cooking. This combination ensures enough heat exposure to pasteurize the meat and make it safe to eat.

Other options don’t fit this specific safe-time-temperature pairing: 135°F for 2 minutes is not high enough to ensure safety, 155°F for 6 minutes uses a higher temperature but isn’t the required 4-minute hold at 145°F, and 165°F for 1 minute doesn’t match the standard roast beef guideline.