Why doesn’t the reconstituted powder look like the ready-to-serve liquid?
The processing procedures for manufacturing each product are slightly different. By virtue of being a powdered product it is never going to mix up to look like the ready -to-serve liquid. For example, powdered milk never mixes up to quite the same consistency and appearance as the milk you buy at the grocery store. To see a bit of grainy consistence after you have mixed the powder is perfectly normal.