How to make cocoa powder soluble in water or milk without sugar?
3. Cocoa is not soluble in milk. However, you can control the sedimentation by increasing the thickness of the milk, or decreasing the size of the cocoa particles. Nondairy milks can help with this as well. By the way, it is only the sugar that is dissolving, when you mix it with cocoa, and add that mixture to milk.