It is equally important to understand that harmful bacteria are generally invisible. Meat can look normal and still be unsafe if it has been contaminated or handled improperly.
Why Does Meat Sometimes Look as Though It Is Moving?
One of the most frightening details in stories like this is the suggestion that the object appeared to move independently.
There are several reasons food can shift or change shape during cooking.
As meat heats, its proteins change structure and muscle fibers contract. Connective tissue can shrink, fat can melt, and moisture can escape. These changes may cause thin pieces of tissue to curl or move.
Hot oil also bubbles and circulates around the food. Small pieces can shift because of the movement of the liquid, particularly when moisture escapes from the meat.
When someone is already worried about an unfamiliar object, these ordinary physical changes can look more disturbing than they would under other circumstances.