Canned pineapple is a more convenient option than cutting fresh fruit. You may occasionally have some leftovers, so it's good to know that it freezes well for later use.
If the pineapple is canned in juice, remove the fruit and juice from the can and store them separately. You can freeze the juice in ice trays to make smoothies and sorbet later.
Place the drained fruit in a single layer on a parchment-lined baking sheet. Freeze it for one to two hours until solid, then store it in an air-tight, resealable container.
This allows you to remove the amount you need at any time rather than defrosting the entire package. Although it lasts a long time in the freezer, try to use it within a year.
If your canned pineapple is approaching its expiration date, remove the contents and properly freeze the pineapple. Do not freeze the fruit in the can, as it can swell or explode.
Avoid dented, rusty, or swollen cans since these can be signs that air and bacteria, such as botulism, have entered the can. If your cans have these visual cues, throw them away.