Which dairy products are the most efficient?
Delamere Dairy Products, based in New Jersey, was the first of the five major dairy companies to adopt the modern technology.
It is the only company that does not use refrigerators, and it uses its own heaters to keep milk cold.
Its products are so efficient that some experts call it the “worlds most efficient” dairy.
But, as a recent study found, it can’t even compete with the dairy industry’s best.