Step 1: Buy octopus from the market and rinse it with plenty of water first.

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Step 2: After washing, put it in a big basin, add proper amount of water, salt and vinegar, and rub it constantly until the mucus of octopus is cleaned.

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Step 3: Wash octopus. Remove all the eyes, teeth and internal organs of octopus, and clean the ink of octopus. This cleaning process is relatively long.

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Step 4: Tear off the black "coat" of octopus from head to bottom. This is the most fishy part, so be sure to clean it.

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Step 5: Finally, wash it repeatedly, and the washed water will not be turbid, which means it is clean!

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