Why It Took Dunkin' Donuts 10 Years to Build the Perfect New CupThe inside story of the struggle the donut chain had in phasing out its iconic, yet hazardous, styrofoam cup.

In New England, it is often said,Dunkin' Donutsis religion. Not only does it have a rock-solidreputationfor consistency -- the chain still uses the original coffee blend established by founder Bill Rosenberg more than 60 years ago -- it's also egalitarian, the sort of place where your car salesman grandfather and your techie nephew might run into Patriots owner Bob Kraft, all out for their morning Dunks run. This universal quality is part of what has helped the brand engender a ritualisticloyaltyand retain a distinctly local vibe, even as it hasexpandedto more than 12,500 stores in 46 countries. It is also why Dunkin' does not take change lightly.

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