[header] How to dehydrate raspberries [title] Select the raspberries. [step] Try to use the ripest, freshest raspberries you can find. This usually means you'll be getting them at the peak of their season, when they're also the least expensive. 
Buy as many raspberries as you'd like to dehydrate. [substeps] You may be able to find deals on bulk raspberries from farmer's markets or orchards.