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ProStart Level 1 Practice Exam

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Which type of contamination would occur from using a copper utensil to prepare tomato sauce?
Correct Answer:
Chemical contamination
Explanation:
Copper can react with acidic foods, so cooking tomato sauce in a copper utensil causes copper to leach into the sauce. That introduces a metal contaminant through a chemical reaction, which is why this is chemical contamination. It’s different from biological contamination (microbes), physical contamination (a foreign object), or cross-contamination (transfer of contaminants between foods). To prevent this, copper cookware is typically lined with tin or stainless steel when cooking acidic dishes.

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