Certified Professional Food Safety (CP-FS) Practice Exam

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What is the acceptable limit of offensive metal in mugs?

  1. 1.0 mg/L

  2. 0.5 mg/L

  3. 2.0 mg/L

  4. 0.1 mg/L

The correct answer is: 0.5 mg/L

The acceptable limit of offensive metal in mugs is 0.5 mg/L. This standard is set to ensure the safety of food contact materials and to minimize the risk of contamination that could potentially harm consumers. Such limits are established based on research regarding the effects of certain metals on human health when certain thresholds are exceeded. Setting the limit at 0.5 mg/L helps to ensure that the metal content remains low enough to prevent any adverse health effects, aligning with regulatory safety guidelines and providing a safer consumer product. This value reflects a careful balance between safety and practical usability of ceramic materials for food and drink vessels.