A nursing home has ordered 25 box lunches for a picnic, featuring a specialty sandwich. Which ingredient should be left off the sandwich to reduce contamination risk?

• A. Raw alfalfa sprouts
• B. Lettuce
• C. Tomato
• D. Cheese

Answer: (A)

Raw alfalfa sprouts are avoided in meals for high-risk groups because they’re a prime vehicle for foodborne bacteria. The seeds can carry pathogens, and the sprouting environment is warm and moist, which lets bacteria multiply quickly. Since these sandwiches are served cold and may be held for a while, there’s no cooking step to kill any bacteria present, so the contamination risk remains high. In a nursing home, where residents may have weaker immune systems or other health issues, avoiding raw sprouts dramatically reduces the chances of a serious illness. The other ingredients listed are safer when prepared and stored properly; lettuce, tomato, and cheese are commonly used with good sanitation practices and, in the case of cheese, often made from pasteurized milk.