A can of food that one or both ends bulge outward because of bacteria action or gas is called a what?

The term used to describe a can of food that has one or both ends bulging outward due to bacterial action or gas production is "Springer." This phenomenon occurs when microorganisms, typically bacteria, produce gas as they metabolize the contents of the can, leading to an increase in pressure inside. The bulging of the can is a clear indicator that the food inside may be spoiled and unsafe for consumption.

Understanding this term is particularly important in food safety and preservation contexts, as it helps individuals identify potential hazards associated with canned goods. The other options do not accurately describe this specific condition of canned food, thereby reinforcing the correct identification of a "Springer" as a key term in food safety discussions.