In a Foodborne Illness Investigation, a sample of each item should weigh between what range?

• A. 1/4 to 1/2 pound
• B. 1/2 to 1 pound
• C. 1 to 2 pounds
• D. 2 to 3 pounds

Answer: (B)

The concept being tested is choosing a sample size that is practical to collect and test while still being representative of the item. For a foodborne illness investigation, a sample needs to be large enough to be representative and to support reliable laboratory testing, but not so large that it becomes difficult to handle, package, transport, or store.

Half a pound to one pound is the best range because it provides enough material for accurate testing (and future retests if needed) without creating unnecessary burden during field collection or in the lab. A smaller sample, like a quarter to half a pound, can miss contaminants that aren’t evenly distributed. A larger sample, such as one to two pounds or more, complicates handling, increases the chance of spoilage, and makes logistics harder in investigations.

So, half a pound to one pound strikes the right balance between representativeness and practicality.