wrote on Nov 17^th, 2004 at 6:52pm:

I can't remember the brand name of this milk, but it is good...  Mixed with water you can't tell much difference in it and skim milk as for taste.

Too, there is a difference between "powdered" milk and "instant" milk.  Carnation, for instance, is an instant milk.  I'm not sure which Sanalac is.  I know that the dry milk at my local Co Op is powdered milk.  As far as I can tell the difference between the two is effort in mixing.  Instant mixes quickly.  Powdered takes beating.  An egg beater is used at home.  On the trail, a whisk or fork will work with a lot of effort.

Now that mixing is to make it "drinkable". The quality of powdered milk is very close to real milk while the instant ... is not.  :-)  I don't know if the hard mixing is needed if using it in recipes.  I just use instant for recipies because it is cheap, easily gotten, and seems to work well.