The other night my wife and I were watching a Modern Marvels episode on "food trucks," primarily custom-built catering rigs based on walk-in van chassis. The producers also zeroed in on Manna One, a ...

Concession trailers are stand-alone kiosks, stalls or stands that vend foods, such as popcorn, cotton candy, cold beverages and pizza. Such businesses are typically seen at carnivals, state fairs and ...