Ingredients: pineapple, small hook knife, kitchen knife.

1. Use a kitchen knife to cut off the green part of the head of 1 pineapple.

2. Place the pineapple on the cutting board and use a kitchen knife to gently cut off the skin from top to bottom.

3. The outer skin of the pineapple has been cut off, and there are still many burr holes on it.

4. Use a small hook knife to remove the hole along the 45-degree direction of the hole.

5. The black burrs of the pineapple have been removed.

6. Cut off the skin at both ends of the pineapple.

7. Place the pineapple in a basin, add some warm water, add some salt, and let it sit for 30 minutes.