【Ingredients】：

Pineapple

【Step】:

1. Peel the pineapple, wash and slice；

2. Put in warm water, add a spoon of salt, and soak for 20 minutes；

3. Take out, dry the water, put it in the oven, set the temperature at 70 degrees for 8 or 9 hours. Don't make the dried pineapple too dry, depending on the thickness of the cut, increase or decrease the time appropriately.