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WDT Distribution Tool
The $10 tool that fixes espresso channeling.
A WDT (Weiss Distribution Technique) tool is a handful of fine needles on a handle used to break up clumps and even out ground coffee in the basket before tamping.
It is the cheapest, highest-impact upgrade for espresso beginners struggling with gushing or sour shots — the tool the pros all secretly use.
Key features
- •Fine needles break up clumps
- •Levels the bed before tamping
- •Fast, 10-second workflow
- •Costs almost nothing
Specifications
| Type | Distribution tool |
| Needles | 0.2-0.4mm ultra fine |
| Works with | All 54/58mm baskets |
| Time | ~10 seconds per shot |
Pros
- ✓Eliminates most channeling
- ✓Cheap and durable
- ✓Steep learning-free upgrade
Cons
- ✕Adds a step to workflow
- ✕Fiddly for beginners at first
Verdict
The single highest value-per-dollar upgrade in espresso — buy one before you buy anything else.