Inspect berries and remove and bad berries or debris.
Rinse using a 2:1 vinegar to water wash. Shake gently to drain, then lay out on towels to dry.
Plase berries on dehydrator rack and dehydrate at 125°F for 24 - 36 hours or until dry.
To powder the dehydrated berries, place in a blender of coffee grinder and pulse until the berries are powdered. Run through a fine sieve to remove seeds and store in an airtight container with a dessicant pack to absorb moisture.