It takes between 200 - 400 pounds of force to crack a coconut. Coconuts do not break easily as they have a hard outer shell - there’s usually a seam line down the center of a coconut which is the weakest part of a coconut. You can break a coconut by hitting the seamline with a hammer multiple times. The coconut should begin to crack and gradually become easier to break. Once the outer shell has been removed you should be able to cut into the next layer revealing the white flesh and water inside the coconut.