If your protein powder is not mixing well there may be a few reasons why.
If you place the powder at the bottom of a glass or shaker cup and then try to mix/stir, it is likely that some powder will remain at the bottom.
We do not recommend mixing our product with a blender due to the product getting additional oxygen causing additional foam. We would like to recommend that you follow standard practice of no less than (NLT) 7-10 rigorous shakes of your shaker cup in water, before consuming your product or making any determinations about miscibility as proper agitation, will solve the problem of clumping (non-miscibility or homogeneity) of our/your powders going forward. Also, we would like to recommend that you increase your shake quantity if you are diluting in higher viscosity matrix types such as milk, to NLT 15-20 rigorous shakes as this is due to basic physical chemistry solubility changes.
If there are still clumps after mixing properly, you can send your LOT number to us and we will help you with your order.