Using a small knife, carefully cut between the head and tentacles of the octopus, just below the eyes.
Grasp the body of the octopus and push the beak up and out through the centre of the tentacles with your finger.
Cut the eyes from the head of the octopus by slicing off a small round, with a small sharp knife. Discard the eye section. To clean the octopus head, carefully slit through one side, avoiding the ink sac. Remove the ink sac and carefully scrape out any gut from inside the head. Rinse the head under running water to remove any remaining gut.