When to introduce Pineapple for babies:
Pineapples are highly acidic in nature and hence its ideal to introduce pineapple for babies after one year. However, if you want to introduce it before one year, you could offer a small piece after 9 months and check whether the baby is able to cope up with the fruit without any difficulties. When you introduce, you can offer cut tiny pieces of pineapple as finger food to your child. Don't offer large chunks as they might lead to choking hazard.
How to select Pineapple :
Look for a ripe and sweet pineapple fruit. A ripe pineapple should smell sweet and pleasant, also if you try pulling one of the leaves from the crown of the fruit it should come easily. Never offer un riped pineapple to your baby, it might cause adverse reactions like diarrhea, vomiting etc.