Good morning Kendra. It is not possible to measure out 264 grams of powder in the supplied scooper (that is 4 times the serving size). We have never heard of our protein tasting 'chalky.' The size of our scooper is the typical size for a protein smoothie. It sounds like you are adding way too much protein powder per smoothie. Please send us pictures of the amount of protein you are using and the amount of liquid per smoothie. Looking forward to hearing from you.