Food product warming or cooling package

A self-heating or self-cooling food package the package comprising:

• a) a container, containing said food, said container having a bottom end, a pair of side edges, and a selectively openable top end;
• and
• b) a temperature-changing element positioned within the container and secured to the container, the temperature-changing element including a pair of compartments separated by at least two frangible seals each of said compartments enclosing one of a pair of reagents respectively, which reagents when combined either heat or cool the food product therein, wherein the temperature-changing element is attached to and vertically held in a suspended position above the bottom end and below the top end of the container by a safety strip positioned within the upper portion of and extending substantially across the container, said safety strip forming a barrier in the container below the top end to prevent an individual from being able to reach into the interior of the container and come into direct contact with the temperature-changing element when the top end is opened, while enabling fluids to flow around the safety strip and out of the container.