How do I make a pour-over with a metal filter?

The choice of filter is one of the most powerful ways to customize your brewing technique. While paper filters produce a crisp, clean cup by trapping most of the fine particles and natural coffee oils, a metal filter—often made of stainless steel mesh—allows these oils to pass directly into your final cup. This changes the entire mouthfeel and sensory language of the coffee, turning a tea-like brew into something closer to a French press in terms of body.

Because metal filters are porous, they are much less forgiving than paper. If your grind is too fine, the silt will pass through the mesh, leading to a "muddy" cup with an unpleasant, gritty texture. To avoid this, you should start with a slightly coarser grind than you would normally use for a paper filter. This adjustment helps the water pass through the bed at the right speed while keeping the fines out of your brew.

The pouring technique remains essentially the same. Start with your "bloom"—the initial pour that releases trapped carbon dioxide—before continuing your steady, circular motions. However, pay close attention to the drainage time. Because metal filters don't get clogged as easily as paper, the draw-down can be surprisingly fast. If the coffee tastes thin or under-extracted, try a finer grind; if it tastes bitter or harsh, your grind is likely too fine, and you are pulling too much sediment through.

In practice, using a metal filter is an excellent way to explore the "hidden" characteristics of a high-quality single-origin bean. The oils that are normally caught in paper are the very vessels that carry the coffee’s aroma and flavor complexity. By using a metal filter, you are effectively "unfiltering" the coffee, which provides a more robust, honest representation of the roast. It is a brilliant tool for those who prefer their coffee with a little more weight and character.