Look at the skin: The skin of mature tree pineapples will become darker, and sometimes black circles and black spots will appear; the skin of unripe tree pineapples will be green. Press the fruit: The skin of a mature tree pineapple will be soft and elastic when pressed with your hands. If most of the area becomes soft, it is mature; the skin of an unripe tree pineapple will be hard and inelastic when pressed. Listening: The sound of mature tree pineapples is muddy when slapped; the sound of unripe tree pineapples is crisp.

Signs of a mature pineapple: the skin becomes darker, black circles and black spots appear, and the skin becomes soft and elastic when pressed with your hands, and can be easily inserted. If you pat it with your hands, the sound will be muddy, the fruit will be rich in aroma, the flesh will be golden, and it will taste sweet and delicious, which means it is mature.

1. Look at the skin: The skin of mature tree pineapples will become darker, and sometimes black circles and black spots will appear, while the skin of unripe tree pineapples will be green.

2. Smell: Ripe pineapples smell rich and fruity. In a relatively small house such as about 15 square meters, the aroma will fill the whole house. Unripe pineapples have a light and fruity aroma. Or unscented.

3. Press the fruit: The skin of a mature tree pineapple will become soft and elastic when pressed with your hands. If most of the area becomes soft, it is ripe. An unripe tree pineapple will be hard and brittle when pressed.

4. Listen to the sound: If you tap a mature pineapple, the sound will be muddy, while the sound of an unripe pineapple will be slightly crisper.

5. Toothpick insertion: A toothpick is a tool with slightly sharp ends. Use it to insert it from the outer skin of the pineapple. Insert it as many times as you like. If it can be inserted easily, it means that the inside of the pineapple is mature. If it's hard to insert, it means it's not cooked yet.

6. Cut into small bites and taste: Use a knife to cut a small slit in the pineapple, then remove the small piece of pulp and taste it. If you find that the flesh is golden yellow and tastes sweet and delicious, it means it is ripe. Otherwise, the flesh is white. , it’s not fragrant, not sweet, and has astringent taste, which means it’s not cooked yet.