IMS Big Bang Ultra Thin 0.5 mm Puck Screen for 51mm Machines

The IMS Big Bang Puck Diffuser Screen is a precision-made, single-piece stainless steel screen designed to distribute water more evenly before it reaches the coffee puck. Its hydrodynamic Big Bang perforation pattern controls how water moves across the screen, helping soften direct impact on the coffee bed. This can reduce the risk of channeling and support more consistent extractions - particularly when paired with careful puck preparation. At only 0.5 mm thick, the screen occupies minimal space above the coffee while helping prevent grounds and coffee residue from reaching the shower screen. Its smooth, low-retention surface is quick to rinse and less prone to coffee buildup. The included magnetic pin allows to lift the hot screen from the basket without touching it directly. Why do you need a puck screen? Helps distribute water more evenly across the coffee bed Softens direct water impact on the puck Can help reduce channeling and improve consistency Keeps the shower screen and grouphead cleaner Ultra-thin 0.5 mm stainless steel construction Smooth surface helps minimize coffee buildup Includes a magnetic pin for easy removal Dose and headspace Although only 0.5 mm thick, the puck screen still occupies some space between the coffee puck and shower screen. If your basket is already filled close to capacity, reduce your usual dose by approximately 0.5–1 g as needed. The portafilter should lock into the grouphead normally, without the puck screen being pressed firmly against the shower screen. NOTE: The included removal pin contains a magnet, allowing the screen to be lifted easily from the puck after brewing without touching hot metal. Stainless steel has different magnetism levels. Food Safe steel (SAE 304) products usually have lower magnetism levels. Thus, magnetic pin might work slightly different with other pucks or surfaces. The shape of the magnet might differ from pictured here.