When you imagine great coffee, a small-batch roaster or an Italian caffetteria likely pops into your head, but there's darn good coffee hiding in the aisles of your local grocery store. While the beans in the supermarket may not rival the best of the best, there are plenty worthy of brewing for your morning pot. And, of course, a few duds to avoid. The 5 Best Grocery Store Coffee Beans, Out of More Than 15 I Tested Five best grocery store coffees Café Bustelo Espresso Ground Coffee Stumptown Holler Mountain organic blend Whole Foods Market Organic Early Bird Blend Dunkin Original Blend Illy Classico Honorable mention 5 grocery store coffees to avoid The most balanced grocery store coffee came from unsuspecting roasters. Here are the best beans from my extensive testing. Katherine Peach/CNET So I went looking -- working through nearly 20 bags, tasting everything I could get into my grinder, including decades-old producers and a few once-craft roasters with national distribution.…