A detailed review of the Mantis WDT espresso distribution tool, examining its build quality, ergonomic handle, and needle flex compared to other WDT tools for eliminating channeling.
If you are looking to improve your espresso shot and achieve consistent results every extraction, you need a WDT tool. (the SCA-standard 9-bar espresso definition) There is concrete evidence that the Weiss Distribution Technique measurably improves the overall quality of your shots, but more importantly, it brings shot-to-shot consistency. You might have the best semi-automatic…
The Weiss Distribution Technique (WDT) is a method for breaking up coffee clumps and evenly distributing grounds in the portafilter before tamping, which reduces channeling and improves espresso extraction consistency.