Improving packaging efficiency regarding volume /air / transport means optimizing this ratio of stacked packaged product volume and product volume. For instance, by compacting the product, through avoiding air or water. By redesigning the packaging system (primary and secondary packaging) to reduce the volume transported.
The benefits are the energy consumed during the transport of packaged products; transporting air or water in a truck affects the environmental efficiency of the retailing step.
Decrease the headspace content in the primary packaging.
Adapt the shape of primary packaging to secondary and tertiary packaging.
Avoid the use of tertiary or even secondary packaging, with primary packaging having good stackability properties.
Primary packaging must show goog vertical compressive strength.