Whether ice cream powder can use sand ice powder instead of it needs specific analysis.

If it is used to make drinks and desserts, it can be made with sorbet powder, but it tastes better without sorbet powder in ice cream powder, because there is fat in ice cream powder, so the taste of fat will be greasy when you make drinks.

If it is used to make ice cream, there is no fat in the smoothie powder, so the ice cream made will feel less soft.