The internal organs include the stomach sac, which is around the size of an avocado stone, the pipe structure, and many loose membranes. When all of the innards are removed, the head will be empty and look like a hat. [3] X Research source You will be left with an empty, pocket type structure. Flip it back the right way around to continue. [4] X Research source
The eyes are disposed of in the majority of recipes. However, some people enjoy eating the eyes fried. [6] X Research source
The beak is used by the octopus for predation, and is similar in structure to a fingernail. It is solid, muscular, and inedible; not something you want to find in your dish![9] X Research source
It can help to have a large bucket in the sink when you are rinsing the octopus, as the process can get slippery.
