Before eating pineapple, soak it in salt water for about 30 minutes, because pineapple pulp contains a pineapple enzyme, which can decompose protein. If you don't soak it in salt water, it will irritate your mouth and lips to some extent, and it will sting. If you soak it in salt water for about 30 minutes, it will dilute the sour taste and increase the taste.
It should be noted that pineapple can be soaked in salt water for 30 minutes before eating it. Soaking time is too long, which may cause nutrient loss and breed bacteria, so soaking time should not be too long.