Certified Professional Food Safety (CP-FS) Practice Exam

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Prepare for the Certified Professional Food Safety (CP-FS) Exam with detailed questions, hints, and explanations. Master food safety knowledge and excel in your exam!

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What is the safe cooking temperature and time for hamburger?

145°F for 3 minutes
150°F for 1 minute
155°F for 15 seconds
165°F for 2 minutes

The correct answer is: 155°F for 15 seconds

Hamburgers and other ground meats should be cooked to a minimum internal temperature of 155°F to ensure that harmful pathogens, such as E. coli and Salmonella, are effectively killed. Cooking the hamburger at this temperature for at least 15 seconds is sufficient to reduce the risk of foodborne illness. Ground meat is particularly prone to contamination because the grinding process can distribute bacteria throughout the product. Therefore, ensuring that the entire patty reaches 155°F for the specified time is crucial for food safety. It provides a balance between ensuring the meat is properly cooked while also maintaining desirable qualities such as juiciness and texture. The other temperature and time combinations provided do not meet food safety standards for ground meats. Cooking at 145°F, for instance, may not adequately ensure the destruction of pathogens if not held at that temperature for a longer duration. Likewise, the temperatures of 150°F or 165°F either do not match the recommended guideline for hamburgers or involve excessive cooking that can affect the quality of the final product.