2. Octopus is tender and very easy to cook thoroughly. If it is cooked for too long, it will cause Octopus to lose its original toughness, which will lead to a hard taste. Therefore, Octopus is usually boiled in water for about 30 seconds. If it wants to be crisp and tender, don't boil the water. If the temperature is too high, the meat of Octopus will become firewood when it is heated, and the water will boil until it bubbles. Put Octopus in and stir it to make it heated.