Wait, what? To make a mini, you just make it as a tall, but you still use the mini cup for the measurements. If I remember correctly, the mini cups only have two lines and the bottom line is the same as the bottom line on a tall. You still end up wasting a lot of the drink because you just made a 12oz drink and put it into a 10oz cup, but they specifically said to make it that way because the blender needs a certain amount of ingredients to blend properly, so just throw away the couple extra ounces. It's a waste of ingredients, but not a waste of plastic.