I’ll try this. Steep a full pound of coarsely ground coffee in 9 cups of cold water in a sort of plastic pail and allow the “mulch” to soak for 12 hours. With the pull of a plug, a thickish coffee syrup drains through a filter into a glass carafe which you then store in the refrigerator. When you want coffee, you measure some into your mug and add hot water or milk. Link.