Today’s focus in the aluminium industry is promoting a circular economy, and meeting the US and the EU's ambition on reducing greenhouse gas emissions. This means, replacing primary aluminium by post-consumer scrap, which contains larger quantities of intermetallic forming impurities Fe, Si ... We need to develop new generations of aluminium alloys more tolerant to impurities which will enable a reduced carbon footprint through increased recycled content. To meet this objective, it is necessary to deepen our understanding of AlFeSi secondary phase nucleation and growth during aluminium alloy solidification. In this work, model 6xxx recycling friendly alloys were manufactured and unique in situ and real-time directional solidification experiments were performed. For the first time, in this work, we show real time nucleation and growth of α-AlFeSi and β-AlFeSi intermetallics in model 6xxx alloys. We discuss the effect of chemistry modification and solidification parameters on the AlFeSi phase nucleation and growth.