To use a stainless steel coffee filter, you need to first choose the right size and shape for your coffee maker. Then, you need to rinse the filter with hot water to remove any dust or residue. Next, you need to put the filter in the holder and add the ground coffee. The amount of coffee you need depends on how strong you like your drink. Finally, you need to pour hot water over the coffee grounds and let it drip through the filter into your cup or pot.