Blueberries a delicious to eat, but sometimes they can be messy and cause us to stain our clothes.
In order to get the stain out it by mixing 1 tablespoon of vinegar and a 1/2 tablespoon of laundry detergent in a sink filled with water. Make sure that the water is cold, and soak the item of clothing for 15 minutes.
Afterwards, rinse your clothing in cold water and throw it into the washing machine and wash again. This will remove the stain immediately.