Mar 04, 2010· Milk "I": LDS Cannery Non-Instant Powdered Milk. Available through LDS church dry pack canneries. $7.05/can. $1.84/gallon. Okay, this is the least expensive powdered milk right now, and the one I have the most of and use regularly in baking and cooking. It was also solidly scored the worst tasting of all the milks we tried.