Dunkin' Donuts K-Cup packs are available for purchase at DunkinDonuts.com, Amazon.com and eBay.com. As of 2015, Dunkin' Donuts K-Cups are offered in several varieties, including Original, Dark Roast, French Vanilla, Hazelnut and Decaf. Hot cocoa K-Cups are also available.
For optimal coffee flavor, Dunkin' Donuts suggests storing K-Cups and other coffee in an airtight container at room temperature in a cool, dry place. Regularly cleaning the coffee brewer typically yields better coffee. Reheating coffee or leaving brewed coffee on the burner for more than 20 minutes is not advised, because it usually negatively affects the flavor. Using an insulated mug is a better option to keep coffee warm.