1. Look at the outer skin: the color of the unripe pineapple peel is cyan or dark green, and the color of the mature pineapple peel is yellow. In addition, press the small prickles on it, if some of them shrink slightly, it means they are mature; if the prickles on it are sharp and hard, they are not mature.
2. Smell: smell it closely. If there is a strong smell, it is probably mature pineapple honey. Sometimes even if it's far away, you can smell the fragrance coming from it. If it's not mature, you can't smell it.
3. Open it to see: after cutting it, look at the small pulp inside. If the golden color represents cooked, it can be eaten; if it is not yellow, it should be ripened.
1. Natural ripening: wrap it with a clean plastic wrap, put it in a carton, or put it in a cool place at home, and it will mature in a few days
2. Fruit ripening: put the unripe pineapple and fruit together, such as apple, banana, etc., these fruits will volatilize ether, ether can make the unripe pineapple ripen quickly.
3. Ripening by sunshine: put it in the sunshine after the fresh-keeping film, it will ripen in a day or so.