Foodborne Illness第 39 / 240 题
In FAT-TOM, 'Moisture' refers to water activity (aw). Which foods are safer because they have low water activity?
a.Cooked rice and cut cantaloupe
b.Fresh cut leafy greens
c.Sliced deli turkey
d.Dry crackers, hard candy, and uncooked dry beans
解析
Water activity measures the moisture available for bacteria; foods with low water activity — dry crackers, hard candy, dry beans — do not readily support growth and are not TCS. Moist foods like cooked rice, cut melon, leafy greens, and deli meats have high water activity and must be temperature controlled. Reducing available moisture by drying is a preservation method.
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