Okay, I made a piña colada with a ready to drink mix but I also added ice, pineapple and cherries and blended it in a blender until it was pretty smooth. Now, having made more than my light weight metabolism can handle, I poured the excess into a glass and placed it into the fridge and left their over night. It now resembles slightly grainy pudding. How did this happen?? Lol I'm so confused here!