Choose Fresh, Ripe Blueberries Pick firm, plump, and deep-colored berries without wrinkles or mold.
Don’t Wash Before Freezing Unlike other fruits, blueberries have a natural protective coating (bloom) that helps prevent freezer burn. Wash them only when ready to use to avoid ice crystals forming.
Spread on a Baking Sheet Line a baking sheet with parchment paper and spread the blueberries in a single layer to prevent clumping.
Pre-Freeze for 1-2 Hours Place the tray in the freezer until the berries are firm. This keeps them from sticking together when stored.
Transfer to a Freezer Bag or Container Move the frozen blueberries into a resealable freezer bag or airtight container. Remove as much air as possible to keep them fresh.
Label and Store Write the date on the bag. Blueberries stay fresh for up to 12 months in the freezer.
Wash Before Using When ready to eat, rinse frozen blueberries under cold water. For baking, use them straight from the freezer without thawing.