Unlike the regular coffee brewing procedure, the process of cold brewing coffee is completed without the use of hot water. This method, although it takes longer than the regular brewing process, produces a smoother concentrated coffee that can be used in order to make hot or iced coffee. Because the coffee is not as acidic as the hot brewed coffee, heartburn is able to be avoided. The materials that you will need in order to cold brew coffee are a machine which is designed to produce cold brew, water, as well as the time to let it steep for at least twelve hours.
The first step is to choose a machine that is able to cold brew coffee. There are several options for this. The first is the French Press, which is a container made of glass and contains a round filter as well as a compressor that is pressed and therefore pushed down into the container. In this way, the concentrate is separated out from the coffee grounds. The second method is called the Two Cup method in which two plastic cups are put within each other. The top of the cup is then punctured with a pin. A circle is then cut into a cardboard piece so that the piece of cardboard can fit around the cup. The cardboard is placed about a ¼ of the way from the top of the cup so that the upper cup becomes the filter. The last method, the Jar and Filter, consists of two jars made of glass with lids. After the coffee is brewed, a strainer is used with a filter in order to separate the grounds from one jar into the other.
After an appropriate piece of equipment is found, the next step is to obtain coffee grounds and actually brew the coffee. Organic whole beans are preferred by many as they can be self ground to produce a richer, fresher flavor. The next step is to determine the ratio of water to coffee that should be used. As a general rule, 8 ounces of water should be used for every 4 ½ ounces of coffee although this can certainly be altered depending on how strong you want the coffee. If the size of your container is not known, you can fill the container and then measure the water using a measuring cup. Next, place the grounds into the container and pour tap, bottled, or filtered water onto the grounds. It is best not to use softened water. The water should wet all of the grounds. In order to ensure that all of the grounds are wet, use a spoon to mix the grounds.
The coffee grounds must remain in the water to steep for a period of at least twelve hours. After the steeping process is thoroughly completed, the concentrate needs to be filtered from the grounds. The coffee grounds can be separated from the concentrated liquid by using a variety of materials such as cheese cloth, mesh strainers, coffee filters, or other filters which sometimes comes with your purchased cold brewing system. The mixture may need to be strained several times in order for the process to be completed. Ensure that you do not overfill with water and that none of the grounds have leaked through the filter into the coffee concentrate.
After the filtration process is completed, your coffee is ready. The concentrate can be then used in the production of many types of coffee beverages such as iced coffee, hot coffee, or other coffee beverages. Similar to regular coffee, cream, sugar, and flavored syrups can be added to enhance the flavor of the concentrate. It can also be used as a form of flavoring in desserts as well as other forms of baked goods. When not in use, the concentrate can be stored in the refrigerator for up to two weeks in order to prevent the growth of bacteria.