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 ...

The 365 Greek yogurt tasted fresh and was well-balanced — mildly sweet and not too tangy or tart. I'd likely use this yogurt in one of my smoothies, as I don't feel it would alter the taste but would ...