A Kal Kan dog food can.
Kal Kan was a brand of canned dog food that Emmett Brown fed Einstein.
Its slogan claimed it was "Recommended by Top Breeders" and the label guaranteed "100% Complete Nutrition".
Doc had even devised an automatic dog feeder that would open cans of Kal Kan and dump the contents into Einstein's dish.
Behind the scenes
- Kal Kan Dog Food was renamed Pedigree in 1988, three years after the release of Back to the Future; Kal Kan Foods also manufactured a Kal Kan Cat Food, which was renamed Whiskas.[1]