I suppose the idea is, if you plug your nose, you rely solely on taste and not on smell. If you do this and taste a piece of apple, it just tastes slightly less strong; if you try it with a potato, it tastes overwhelmingly like starch.
I suppose the idea is, if you plug your nose, you rely solely on taste and not on smell. If you do this and taste a piece of apple, it just tastes slightly less strong; if you try it with a potato, it tastes overwhelmingly like starch.