The manufacturer of a cake filled only 50 to 60% of the
packaging with the cake, i.e. far below the capacity of the
carton.
The cardboard packaging contained five pieces of cake
individually wrapped in plastic foil. In between and upwards were
empty spaces. The film packaging of the individual cake pieces
includes warm air, which increases the volume of the film packaging
immediately after sealing (about 10 %).
When inserting the individual packages into the outer carton,
the robot used for this purpose requires a certain distance between
the cake pieces. If, on the other hand, the individual packages are
pushed or pressed together manually, there would be room for a
sixth cake piece.
