Espresso Puck Prep: My personal Tool Guide

Before I even switch on my grinder, I start with the RDT (Ross Droplet Technique). Basically, I give the beans a tiny mist of water using a small spray bottle.

It sounds unnecessary at first, but honestly, it prevents so much mess. Without RDT, most grinders throw coffee grounds everywhere because of static, especially single-dose grinders.

With one quick spritz, the grounds come out fluffy, clean, and without sticking to the walls of the grind chamber. I’ve tested this with light roasts, medium roasts, different grinders, it just works.

And once you get used to the cleaner workflow, you never go back.

After grinding, I pour the grounds into a blind shaker. This little metal cup helps spread the fines more evenly instead of letting them collect in one spot, which can easily lead to uneven extraction.

It’s especially helpful with light roasts or precision baskets because it gives you a more consistent puck before you even start WDT.

For me, this step reduced channeling noticeably and made my extractions more stable overall.

If you’re looking for a simple upgrade that brings more consistency into your routine, the blind shaker is a surprisingly effective tool.  

Before adding the grounds to the portafilter, I place a small paper filter at the bottom of the basket.

It keeps the basket much cleaner and makes removing the puck much easier.

It usually falls out as one clean piece. This also helps improve the water flow from the bottom and can reduce channeling with lighter roasts.

The step itself only takes a second, but it streamlines your workflow noticeably. If you make several shots in a day or just want less cleanup, a bottom paper filter is an easy and surprisingly effective addition to your routine.  

Clumping happens with most grinders, especially with lighter roasts.

Using a WDT tool helps break up those clumps and creates a fluffy, even coffee bed.

I usually make a few controlled movements with my needle tool to loosen everything up.

It doesn’t take long but has a big effect on extraction. You don’t need to overthink this step even a few seconds of WDT can make your shot more balanced and reduce the chance of channeling.

It’s one of the steps I recommend to almost everyone.

After WDT, I like using a gravity distributor to level the surface.

It spins lightly and evens out the top of the puck without applying pressure. Some baristas skip this step, but I find it helps create a consistent surface before tamping.

It makes the tamp feel cleaner and more predictable and removes small peaks or uneven spots that can happen during WDT.

It’s not a must-have tool, but if you enjoy a tidy workflow and repeatable results, it’s a nice addition.

Tamping should be consistent, and that’s why I use a spring-loaded tamper. It applies the same pressure every single time, which removes a lot of human error.

My routine is simple: push down until the click, release, and do a quick second tamp to settle everything.

It gives me a level, predictable result, even on days when I’m tired or distracted. A good tamper won’t fix all puck prep problems, but it definitely brings more stability into your extractions.