Why Pre-Infusion Is the Key to Fixing Sour Light Roast Espresso
I remember the first time I brewed a light roast espresso that tasted like lemonade—bright, acidic, and completely off what I was aiming for. It was a frustrating experience, especially since I had spent weeks perfecting my grinder settings and tamping technique. The real breakthrough came when I learned about the power of pre-infusion—a simple…





