From Peter Yen of Santa Ana Packaging, a manufacturer of donut boxes: Anytime you see a movie or sitcom set in New York and a pink doughnut box appears, you know it obviously took place in L.A. I did ...

If you disregard national chains like Dunkin Donuts and Krispy Kreme, you’ve probably noticed that most donut places, especially on the West coast, use distinctly pink cardboard boxes for customers to ...