I don't see how it could possibly track that (i'm a programmer) - there's gotta be hundreds if not thousands of different milk bottle shapes with the same number of various labels in the world, and how would it know how much milk is left in that bottle? I suppose the food ordering would maybe make sense - You run out of milk, close the door and order more or at least maybe can compile a shopping list directly from the screen or something and push it to your phone?