A standard scoop that comes with it is 70cc's. But the whey has to be packed in pretty tight to actually weigh 30grams. Each plastic scoop weighs 8 grams. I figured this out when I decided to randomly weigh the protein before I mixed it and realized that my quick scoops were actually way under 30grams even though the scooper was filled to the top. So now I just know pretty much by feel when I am scooping it but I started out weighing it on a scale. (I know, I know, thinking to much into it). To answer your question. just weigh it first in whatever container that you are going to use as a scooping device and just use the same thing everytime.