Follow along as coconut chris teaches us how to open a coconut in under a minute. - you can use a metal spike, but the most common way to open a coconut "hawaiian style" is to smash it on a rock. - do this until the husk starts to break, when it does peel it off.. To open a coconut, start by poking a hole in the top with a knife and draining out all the water. then, bake the coconut in the oven at 375