Why is my coffee grinder clumping?
You will be able to observe that the coffee grounds are hydrophilic, and therefore absorb the water droplet. As a result the coffee grinds swell, causing the clump to self destruct. If you think about the manner in which water enters the portafilter from the shower screen it becomes obvious too.
Does clumping affect espresso?
Yes, my Rocky generates clumping when doing espresso grinds, but the lightest possible touch causes those clumps to disintegrate when I do WDT, plus I’m tamping at 20+ pounds, so it would have to be a clump stronger than a Hazelnut to survive that…
How do you stop clumping espresso?
How can we reduce this? Answer: Typically clumping is going to come from the humidity, the beans and roast, or something making the beans hot. Try grinding a fresh bag of beans and dialing back on the grind a little bit as it might be a little too fine – this should do the trick.
How do you stop a clumping grinder?
You could use a toothpick or something similar to break up the clumps. Tamping should then do the rest.
What is a WDT tool?
The Weiss Distribution Technique (WDT) is a distribution method for espresso making. Using a fine needle or similar tool, the barista stirs the coffee while it sits in the portafilter. A funnel placed above the portafilter helps prevent spills.
What do you use WDT for?
Is a WDT tool necessary?
Is WDT necessary? Of course not! If your grinder produces clump-free, evenly distributed coffee grinds in the basket, WDT is superfluous. But if not, there’s a good chance that WDT will improve your extractions.
Does WDT make a difference?
“The most compelling evidence for the efficacy of WDT is reduction in channelling,” Scott says. “When you use WDT well, you cannot only see a decrease in channelling but all else being equal, your shots should flow a little slower, which is a side effect of decreased channelling.”