Select & Prepare

Select plump, full blueberries with a light gray-blue color. A berry with any hint of red isn't fully ripened. White and green colored blueberries will not ripen after they are picked; while blueberries that have already turned purple, red or blue-ish usually DO ripen after they are picked (if they are kept at room temperature to ripen).

Once picked, don't place the berries, still warm from the sun, in a closed bag or container. Leave the container open so moisture doesn't form in the container.

Don't wash berries until just before using to prevent berries from becoming mushy.

Chill berries soon after picking to increase shelf life. If refrigerated, fresh-picked blueberries will keep 10 to 14 days.

Freeze berries in freezer containers without washing to keep the skins from toughening. Place berries one layer deep. Freeze, and then pour the frozen berries into freezer containers. Because unwashed blueberries freeze individually, they can be easily poured from containers in desired amounts. Remember both frozen and fresh berries should be rinsed and drained just before serving. Just before using, wash the berries in cold water.

Source:PickYourOwn.org