Head of Application Engineering
Sustainability, green economy and life cycle assessment are topics that are increasingly discussed and are getting more in the focus of public interest. A systematic analysis of life cycle assessment (LCA) of different salt types (rock salt, vacuum salt and sea salt) was compared within the European Union. The LCA analysis starts with the raw material extraction and ends with transportation of the salt to customers. The packaging aspect was excluded for the purposes of this analysis.
The LCA assessment indicates that, compared to the other salt types, sea salt has the smallest environmental impact (concerning energy consumption and CO2-emission) at a production level. However, the advantage for sea salt is almost completely lost, when transportation is included with the analysis. The primary driver behind this result is the location of the resources in question, where sea salt may only be produced in warm coastal areas, and unfortunately many of these products need to be transported long distances to get them to customers. Concerning transportation, rock salt and vacuum salt can have significantly lower impacts on the environment than sea salt.
Holistically, looking at the complete supply chain, the environmental impact of a salt product is an issue that needs to be evaluated on a case-by-case basis, yet both sea salt and rock salt can be considered as equivalent when the complete life cycle is taken into account. With respect to vacuum salt, the energy consumption of vacuum salt is already so high, that the positive effect of distribution does not significantly affect the results.
|Create Date||July 6, 2018|