[Lenneth]

I do recall it being mentioned that the powder does not dissolve, it'll leave some residue in the glass.

Any reason why you would want to do this?

If you're like me you buy PM in bulk, for the savings.

Yes, there is a minor amount of residue left behind, just add a little more liquid, stir and drink, you'll get most of the residue, Also, PM powder mixes better in warm liquids rather than cold ones.

At the risk of repeating myself, I regard yogurt as an ideal medium fot taking up the powder, which it does very well besides adding calcium.

flavored almond milk works well, also is VERY high in Calcium.