bottle ranked best considering emissions into water.
Contradictory conclusions of product LCAs can be explained by differences in the definition of processes and data inventory, which affect the whole accounting procedure. Notwithstanding, these studies have shown that the number of times a beverage package is re-used, and the transportation involved, as well as technology, play a major role. While LCA provides a tool to improve product design and manufacturing processes, comparing products on this basis alone could be misleading until standardised LCA methods are established.