There is a host of kitchen equipment on the market today. In most home kitchens, there are limited resources and room for all of this equipment. Most home chefs today are also limited in the amount of time they can devote to cooking. For these reasons it's important that home chefs only buy those items that make meal preparation more efficient, economical and easy. A pineapple corer should be on that list of essential kitchen equipment.
Alton Brown, host of the Food Network's Good Eats, lives by the rule that he only buys kitchen equipment that serves more than one purpose. I believe he would make an exception for a pineapple corer. Although it only serves one purpose, it does so quickly and easily, and does it in a way that saves money.
Using a pineapple corer is far easier than using the alternative: a knife. Using a knife to cut a pineapple is a very time-consuming affair. First the ends of the fruit must be cut off, then all of the prickly skin. The fruit must then be cut into large hunks and finally chopped up into smaller chunks. Even when done by an expert, there are usually hunks of the tough skin hanging to the exterior or parts of the core stuck on the interior of the finished fruit.
To use a standard pineapple corer, cut the top from a fresh pineapple. Set the pineapple corer directly in the middle of the pineapple, grasp the fruit in one hand and the corer in the other, and while exerting a downward pressure on the corer and holding the fruit in place on a flat surface, begin to turn the corer. This will naturally drive the corer into the fruit. About twenty full turns later, when you judge that the corer is almost to the bottom of the fruit, pull forcefully on the corer to lift it and the sliced, cored fruit from the husk. You will be left with beautifully cut pineapple rings in no time at all.
A pineapple corer not only works faster than a knife, it leaves a far better impression on guests when they are presented with the results. What takes upwards of five minutes with even the sharpest knife is completed in less than thirty seconds with a pineapple corer. I got a pineapple corer for my birthday, and less than a minute later I was enjoying large rings of pineapple fresh from the fruit!