FIBC's can be emptied several different ways but the most common discharge is an outlet spoutthat is attached to the bottom of the bag. Sometimes the discharge spout is inside a closure on the bottom of the bag such as a petal closure, pajama closure or star / x-cut closure. The closure is designed to protect the spout and to prevent the product from leaking / sifting out of the outlet before required. Discharge spouts can vary and can be custom made.