Topic analysis

Coffee with a splash of physics: how to make the most out of your brew

Climate change is endangering coffee production, reducing yields and driving up prices, while coffee cultivation contributes to significant carbon emissions. Physics-based research has uncovered key insights to optimize espresso and pour-over brewing techniques—including ideal pressure ranges, grind size, pre-wetting beans to reduce static clumping, and optimal pour height—minimizing waste, enhancing drink quality, and supporting sustainability by using less coffee without sacrificing flavor.