The disclosure is directed to machines for manufacturing a flexible pouch that sterilizes the flexible pouch material, seals the fitment within the pouch, and inspects the fitment installation. A sterilization chamber in the machine a box having an oxygen supplied entry compartment, a hydrogen peroxide supplied center compartment, and an oxygen supplied exit compartment. To a secure the fitment within the flexible pouch, a seal bar including a center cavity disposed between a pair of sideways L-shaped portions is used. After the fitment is installed into the flexible pouch, it is inspected with a digital photograph analysis apparatus.