The process involves dissolving a pre-made, dehydrated coffee product in water. This method offers a rapid means of preparing a caffeinated beverage. For instance, adding a teaspoon of granulated coffee to a cup of hot water exemplifies the process.
Its convenience is a primary advantage, offering a quick alternative to brewing methods requiring specialized equipment. This characteristic has fueled its widespread adoption, particularly in environments where time and resources are limited. Historically, its development addressed the need for a stable and easily transportable coffee product.