How Can You Tell If Blueberries Have Gone Bad?
Blueberries can go bad if they become moldy, soft, and squishy. The blueberries may also develop a slimy texture and an unpleasant odor. If the blueberries look shriveled and have a dull, muted color, it could be a sign that they have gone bad. It is best to discard any blueberries that show signs of spoilage as they may cause illness if consumed.