Instant coffee is coffee flavour mixed with hot or cold water, add sugar & milk to taste, and it’s ready to drink. You do not need to filter anything as it is done with fresh coffee. So how is instant coffee made? Below is a summary explanation of the process.
The coffee beans are first of all roasted. Then using high temperature and pressure, the roasted coffee flavour is forced out of the coffee beans using water.
The water itself is then forced out under high pressure leaving only a pasty coffee flavour.
This coffee flavour paste is then frozen under a temperature of about -40°C and still in that frozen temperature, broken into granules.
The coffee granules are then processed inside a system that removes the remaining water inside them, producing coffee granules that are absolutely dry. The granules are then packaged for sale.