About 18 months ago, I got a Cosori CP267-FD food dehydrator. I’ve used it a few times to make mushroom jerky, and a few times to preserve fresh herbs … but, in the past few weeks, we’ve started using it a lot to dehydrate fruits. Recently, we came across a great deal on pineapples at Costco — and we picked up fifteen of them! So we’ve been chopping three pineapples a day, setting the pieces on the dehydrator trays, and dehydrating them at 135F for 10-12 hours. Thicker cuts get a great chewy texture, thinner cuts get crunchy.