Abstract: A device for holding and supporting a bag, such as plastic freezing bags, in an open position for convenient filling. The bag supporting and holding device includes upstanding sides that allows an open top portion of the bag to be cuffed back thereover so as to define an interior open top portion of the bag about the sides engaging the cuff of the bag. An insert is provided that is adapted to be placed between the sides of the bag support and holding device and directly adjacent the interior of the supported open top bag. Projecting outwardly from the insert is a shield that projects the portion of the bag cuffed back over the sides and the insert itself further protects the interior of the bag about the top thereof from being exposed to the material being filled within the bags. Further the insert is provided with a funnel that projects upwardly to facilitate filling.