This Coffee Writer Brewed 20 Bags of Grocery Store Beans. Here Are the 5 Best to Buy

Katherine Peach, a former barista who writes about coffee professionally, tested 20 grocery store coffee bags.

Her tasting also covered more than 15 coffees from chain and local stores, including Whole Foods, Trader Joe's, Walmart, and Stop & Shop.

The five best picks were Café Bustelo Espresso Ground Coffee, Stumptown Holler Mountain organic blend, Whole Foods Market Organic Early Bird Blend, Dunkin Original Blend, and Illy Classico.

Café Bustelo had 21 months of shelf life remaining from its best buy date, and the brand was founded in New York City by a Spanish immigrant.

Stumptown Holler Mountain was tested seven months after the roast date; Peach also once evaluated more than 40 K-Cups.