Break and lift perforated flap. Tear off circular portion.
Pull neck of the tap out. Put into cut out and refit the flap.
Tear off the tamper-proof seal.
Remove the aluminum capsule.
Pour by holding up the winged piston.
For easy identification of the Bag-in-Box® on shelves, Vitop suggests printing the picture of its tap on the pre-cut circular cardboard flap.