You may not be able to see them with the naked eye, but living organisms are ingested by humans every day. Corn earworms, for example, crawl on ears of corn searching for silk, and often leave eggs behind. In small amounts, these creatures present no health hazard to humans, causing the FDA to set "Food Defect Action Levels" that determine what amount of "defect" merits action.
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Key Facts In This Video
Bacteria from dog feces float freely in the air we breathe. 00:21
The FDA determined that asparagus with less than 40 thrips per 100 grams is okay to sell. 01:07
Produce that carries up to five maggots per 100 grams passes inspection. 02:08