Firstly, if the flannel (also known as a nel) is new, remove it from the wire frame and boil it for 5 to 10 minutes then carefully remove it. Brush the flannel with a soft bristle brush on both inside and outside. Skip this step if you are using a previously-used nel. Pinch the bottom of the nel and twist to wring out excess water. Place the nel between a clean dish towel and slap the towel to remove additional water. Grind approximately 40 to 50 grams of coffee to a very course grind. Add coffee to nel in a...