Ever wonder why we need different measuring cups for wet and dry ingredients?
It’s because liquids are self-leveling, and dry ingredients are not.
So when you measure a liquid, you can use a line in the measuring cup where the liquid has leveled to, and see the amount pretty clearly.
With a dry ingredient, you’re the one that has to do the leveling. Therefore to accurately measuring your dry ingredients, you need to use something like the scoop and sweep method...that is you put your measuring cup into your container of the dry ingredient (sugar, flour, corn meal), scoop out the ingredient with the measuring cup, and then holding the measuring cup in one hand, you level (sweep) it with a flat tool. That means that your dry measuring cup needs to be exactly the size that you need so that you can fill it to the very top.