In 1984, researchers for Coca Cola had an idea about dispensing carbonated beverages in space to give astronauts more choices to drink and also to create a stellar advertising opportunity. The company developed a can that would work in weightlessness to keep the cola fizzy without spewing out of the can. NASA agreed to let the astronauts try the Coke device on a Shuttle flight. When Pepsi learned of this project, it also wanted to participate and developed its own container. Both Coke and Pepsi products were flown on the STS 51-F mission in 1985 so crew members could evaluate the dispensers and do a taste test. Results were mixed and NASA did not add either company's product to the Shuttle food pantry; the mid-1980s "Cola Wars" continued on earth but not in space. NASA gave the Museum this extra Coke can that was modified for spaceflight.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.