How to remove viscera and eyes of octopus and how to clean them?

1, first prepare octopus, salt and vinegar, as shown in the figure.

2. Then wash the octopus in clean water first, as shown in the figure.

3. Then pour a proper amount of water into the bowl again, as shown in the figure.

4. Drop vinegar and salt into the water, as shown in the figure.

5. Then scrub and clean the mucus of octopus, as shown in the figure.

6. Then cut the head of octopus with scissors, as shown in the figure.

7. Pull out all the eyes and internal organs inside, as shown in the figure.

8. Finally, put the cleaned octopus on a plate for use, as shown in the figure.