Rinse the blueberries gently under cold water
Remove any stems, leaves, and damaged berries
Pat the blueberries completely dry with a clean towel or paper towels
Spread the blueberries in a single layer on a baking sheet
Place the baking sheet in the freezer until the berries are fully frozen
Transfer the frozen blueberries to airtight freezer bags or containers
Remove as much air as possible before sealing
Label the container with the date
Store in the freezer for up to 10 to 12 months