Blueberry is a popular fruit that is rich in vitamin. However, blueberry picking can directly lead to flavor. Also, many blueberries on the market are fake, which might be made of wild jujube or cherry. And dyed blueberry can contribute to harm the health. Table of Contents 1. Blueberry ripening season 2. Check the surface 3. Check the color 4. Check the size 5. Check the peel 6. Check the production date 7. Pinch 8. Have a taste 9. Smell Blueberry-related products