it seems to be very thick when mixed in liquid compared to regular whey powder, like you need more liquid. And in the brand I got (Dymatize?) you use two fairly large scoops to get the same protein content as one slightly larger scoop of whey. It also has a bit more grittiness in it's consistency. I just ran out of whey powder and you reminded me I have a mostly full tub of casein, ha ha. I don't like it as much.