Don't mistake it for dirt—that white coating on blueberries signals peak freshness.
As produce experts know, this natural wax layer, often called 'bloom,' shields berries from moisture loss, bacteria, and pests. It keeps blueberries plump, juicy, and shelf-stable longer. Next time you're shopping, choose those with the haze—it's a mark of superior quality.
Grapes often have a similar protective coating, though it's less visible on their lighter skins.
