Most coffee lovers agree that espresso is less bitter than drip brew because of the shorter brewing time. However when we ran comparison taste-tests in the homes of espresso lovers, they all agreed that AeroPress espresso tasted better than the brew from their high-priced European espresso machines--why? The reason is that the total immersion brewing of the AeroPress yields a robust flavor at lower temperature--and lower temperature brew is far less bitter. Home espresso machines don’t allow adjustment of temperature. But even if they did, their lack of total immersion would not yield robust flavor at reduced temperature. In addition to smoother taste, the AeroPress has several other advantages over conventional espresso machines.