Maintaining the correct temperature is critical to prevent food borne illness.

It also prevents food from being forced through the contact area.

Sometimes this can prevent food from reaching the stomach.

Trying to prevent food from floating off during meals.

Plates can be any shape, but almost all have a rim to prevent food from falling off the edge.

Small tentacles around the mouth also help prevent food from escaping.

It prevented food and medicine from being shipped to Cuba.

This can prevent food from reaching the stomach, leaving it stuck in the esophagus.

A raised edge along one side prevents food from being pushed off by a spatula.

With other types of pans, some oil or fat is required to prevent hot food from sticking to the pan's surface.