Edible situation: When the stalk in the middle of the pineapple is brown, smell the pineapple. If there is no bad smell, juice, softness and other deterioration phenomena, the pineapple is only overcooked, although it tastes bad, it can still be eaten. If it is an inedible pineapple, if the pineapple core in the middle is brown after cutting, and the pineapple pulp is soft, juicy and sour, then this pineapple has gone bad and it is not recommended to continue eating.
Not recommended: Generally speaking, the normal pineapple core is light yellow, and the blackening in the middle indicates that the pineapple has gone bad. If you continue to eat, it is easy to have food poisoning such as abdominal pain, diarrhea, nausea and vomiting, causing physical discomfort. Therefore, the pineapple with black in the middle is not suitable for further consumption.
Extended data:
Pineapple, like some fruits, can make some people allergic, and the allergic reaction can appear within 15 minutes at the earliest. This symptom is called "pineapple disease" or "pineapple poisoning". For example, abdominal pain, diarrhea, vomiting, headache, dizziness, skin flushing, itching all over the body, numbness of limbs, mouth and tongue, dyspnea, shock and other serious allergic reactions.
References:
Baidu encyclopedia pineapple