To avoid lumps, we recommend that you first add the collagen to your mug and pour the liquid over it, then use a whisk or hand-held frother directly in your mug. We'll be launching our own frother soon, so stay tuned!
With a larger whisk, sometimes the best technique is to roll it between the palms of your hands.
For smoothies and shakes, you can of course shake or mix the collagen with the rest of the ingredients.