Spread your berries out on a sheet and remove bugs, twigs, leaves and other debris.
Sort through the berries and discard any that are green. Green berries will not dry properly. A ripe juniper berry is blue.
Place the ripe juniper berries on a baking sheet. Move them to a location where they will be out of reach of curious pets and children. They can dry indoors at room temperature.
Allow the berries to completely dry for about three weeks.
Sort through your berries again. Discard berries that are brown. Examine the remaining berries for entrance holes. Holes in a berry means that it has bugs. Discard bug-damaged berries.