KNODOS 51mm Espresso Puck Screen — Ultra Thin Stainless Steel Filter for Delonghi, Casabrews, Smeg

The KNODOS 51mm Espresso Puck Screen is an ultra-thin reusable stainless steel mesh designed for compact espresso machines with smaller portafilter baskets. Place it on top of your tamped coffee puck before extraction — it spreads water evenly across the full surface and keeps spent grounds from sticking to the shower screen. Thin enough to fit inside the basket on a full dose without reducing headspace. Built for Delonghi Dedica, Stilosa, EC685, EC885, Casabrews, Smeg, and other 51mm machines.

Why a 51mm Puck Screen Matters More

Smaller baskets are more sensitive to uneven water distribution than larger ones. On a 51mm basket, there is less surface area for water to spread naturally — so it tends to find the path of least resistance and channel through weak spots faster. A puck screen forces the water to distribute evenly before it contacts the coffee, giving you more consistent extraction from a basket size that is harder to extract evenly without one.

Cleaner Group Head

Without a screen, spent coffee sticks to the shower screen after every shot. On compact machines like the Dedica, the group head is small and tight — cleaning stuck grounds is awkward. The puck screen catches the spent coffee below it, so the shower screen stays clean and you spend less time maintaining the machine between shots.

Ultra Thin Design

Made from food-grade stainless steel mesh, thin enough to sit inside the 51mm basket on top of a full dose without pressing against the shower screen or reducing headspace. No need to lower your dose to accommodate the screen.

How to Use — Step by Step

1. Dose and distribute your ground coffee into the 51mm portafilter basket.

2. Tamp as usual.

3. Place the puck screen flat on top of the tamped puck.

4. Lock the portafilter into your machine and extract.

5. After the shot, knock out the puck — the screen comes out with it or stays in the basket.

6. Rinse the screen under running water. Deep clean weekly with espresso machine cleaning solution.

Machine Compatibility

Fits 51mm portafilter baskets, including:

• Delonghi: Dedica (EC680, EC685), Stilosa, and other 51mm models

• Casabrews: all 51mm espresso machines

• Smeg: 51mm espresso models

• Any machine with a 51mm portafilter basket

What's Included

• 1x KNODOS 51mm Espresso Puck Screen (Stainless Steel)

Frequently Asked Questions

What machines use 51mm puck screens?

Machines with 51mm portafilter baskets — mainly Delonghi Dedica, Delonghi Stilosa, Casabrews, and Smeg. These are typically compact, entry-level semi-automatic machines. Check your portafilter basket diameter if unsure.

Is 51mm the same as 54mm?

No. 51mm and 54mm are different sizes. 54mm is used by Breville machines. 51mm is used by Delonghi Dedica, Casabrews, and Smeg. A 54mm puck screen will not fit inside a 51mm basket.

How do I clean it?

Rinse under water after each shot. Soak in espresso cleaning solution weekly for coffee oil buildup. The screen lasts months of daily use.

Can I use this with a pressurized basket?

A puck screen is designed for non-pressurized (single wall) baskets. If you are using a pressurized (dual wall) basket, a puck screen is not necessary — the pressurized basket already controls water distribution.