Costco's Kirkland Signature Greek yogurt, which is sold in big three-pound tubs, is one of those products the company has never outright stated the producer of. There's some evidence pointing to a ...
So, to see which Greek yogurt is the best value, I tried store-brand versions from Trader Joe's, Whole Foods, Costco, and Wegmans. I bought the most basic plain Greek yogurt I could find at each ...