This can be served as a salad without grilling, but I highly suggest the grilling bring to an other level of goodness. The 8 tentacles and the body to which they're attached are edible. A note about octopus: Octopus loses a lot of its volume during cooking, so expect the finished dish will be quite less than the original quantity. If the octopus has not been cleaned: Under running water, remove and discard the ink sac, stomach, and eyes from the large head cavity. Remove the beak, at the bottom of the head where it joins the tentacles, with a sharp knife. Picking Fresh Octopus Fresh octopus is flexible with firm and non-slippery suckers. Picking with well-shaped bodies and suckers and avoid the fishy or smelly ones.