Its the residue of HEED Hammer that I see at the end of pouring it out of a Pyrex container. Most of it dissolves with warmer water but there is still some residue. I think heat applied is a faster way to dissolve these various powder additives. Getting a high powered mixer/blender might just get the powder embedded into the fruit particles.

The Perpetuem on the other hand must contain the protein powder which will just not dissolve well. High heat (hot water) might cook the proteins and possibly destroy some of the benefits of the protein. I don't know. If you speak to any of these powder additive reps, they will all admit that it doesn't mix well and they let it go at that. This might be an area where better technology will solve the problem, if you consider this a problem.

Anyways, I see these high end mixer/blenders as a way to blend for the hydration and nutrition for long rides. And in part, for the simple enjoyment of a good smoothie drink that will beat out any commercial brand.