Brewing coffee with cold water keeps the heavy oils and acid released by heat in the grounds and preserves the rich coffee flavor. Cold brew your own gourmet coffee concentrate at home with this easy-to-use Toddy® Coffee Maker. Store the coffee concentrate in your refrigerator and you can quickly prepare a cup of hot, fresh, gourmet coffee by adding boiling water. Or, pour the cold coffee concentrate over ice for smooth, rich iced coffee. Entirely dishwasher safe. Two filters included.