Contamination & AllergensQuestion 71 of 320

A guest with a milk (dairy) allergy orders a dish. Which of these hidden ingredients could still contain milk and cause a reaction?

a.Olive oil
b.White vinegar
c.Plain black coffee
d.Butter, whey, and casein

Explanation

Milk allergens hide in ingredients such as butter, whey, casein, and many creamy sauces, so staff must read labels and recipes carefully. Olive oil, vinegar, and plain black coffee do not contain milk. Knowing hidden dairy sources is essential to protect a milk-allergic guest.

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