I used an organic pineapple that was not ripe. Once I got the pineapple home, I twisted the top off, do not cut it. Next, pull off the lower leaves, you will see little brown roots when you pull the leaves off. I pulled about two inches of leaves off, and then place the top into a glass of water covering the bottom portion.
I placed the pineapple in a nice sunny location, and change the water about every other day. This will prevent yucky moldy water. Once your pineapple has roots, you can plant it in soil!