I'm one of the few who loves all brands powdered milk, because that is all we had on the table when I was kid, now I'm over 50.

The best I've found is this stuff: Bob's Red Mill Nonfat Dry Milk Powder. Before that it was Carnation for years.

Bob's is a true powder, not crystals. This means it packs very compactly, you need far less volume of powder to make a glass of milk.

On the other hand powder does not mix as well as crystals, so I use a Aerolatte Milk Frother which weighs 2 ounces without the AA battery. Takes 5 seconds to dissolve with the Aerolatte tool, almost impossible for me to dissolve it otherwise. Which is a disadvantage on the trail where crystals, like Saco or Nestles dissolves with only a spoon and some time, a huge plus!