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A cook wants to marinate a tomato and vinegar salad in a galvanized metal tub overnight. Why must the manager stop this?
a.Acidic food leaches metal from a galvanized surface
b.Acidic food corrodes and dulls the tub's welded seams
c.Acidic food loses its color when it touches bare metal
d.Acidic food freezes unevenly in a heavy metal container
Giải thích
Galvanized metal may not be used for utensils or food-contact surfaces that touch acidic food, because the acid dissolves zinc from the coating and causes toxic-metal poisoning. Copper and copper alloys such as brass are barred from contact with food below a pH of 6 for the same reason.
Trích dẫn luật: FDA Food Code §4-101.15Luyện miễn phí toàn bộ 500 câu hỏi — không cần đăng ký.
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