International Airlines Group (IAG) has signed a 10-year e-SAF purchase agreement with producer Infinium. How is e-SAF different from SAF? It all comes down to the feedstock, which is exactly where the advantages and, unfortunately, disadvantages come from. The traditional pathways of SAF production include biologically sourced feedstock in the form of used oils and fats or municipal and agricultural waste. This is the main hurdle that SAF faces as production to scale would involve a significant supply chain effort by the aviation industry. The proposition of e-SAF bypasses any biogenic feedstock by sourcing the carbon element with the help of Direct Air Capture (DAC) technology, which is one of the clean technologies that is lagging behind the most. Hence…