污染与过敏原第 55 / 320 题
Which of the following is an example of a physical contaminant?
a.Cleaning solution residue
b.Peanut protein
c.A metal staple from a produce box
d.Salmonella bacteria
解析
Physical contaminants are hard or soft foreign objects like metal staples, glass, bones, hair, or bandages that can injure a guest. Salmonella is biological, cleaning residue is chemical, and peanut protein is an allergen. Inspecting deliveries and keeping foreign objects out of food prevent physical contamination.
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