WDT (Weiss Distribution Technique)

WDT is a simple technique that involves stirring coffee grounds inside the espresso basket using a tool made of very thin needles. It acts like a miniature rake, breaking up the tiny clumps that naturally form during grinding. If those clumps remain, the pressurized water will bypass them and flow only through the looser areas, which makes the coffee brew unevenly. By combing through the grounds, you ensure that water passes through the coffee with equal resistance, bringing out a smooth and balanced flavor. Even though this tool looks a bit like an acupuncture device, it has become a fundamental step for achieving consistency behind the espresso bar.