Wash the oranges thoroughly
Pat the oranges dry
Slice the oranges into thin, even rounds
Remove any seeds
Preheat the dehydrator to 125°F to 135°F
Arrange the slices in a single layer on dehydrator trays
Leave space between slices for air circulation
Dehydrate for 6 to 12 hours
Flip the slices halfway through if needed
Check for dryness and leathery or crisp texture
Remove fully dried slices and let them cool
Store in an airtight container in a cool, dry place