Instant coffee differs from the ordinary one by the method of preparation and tastes. The advantage of instant coffee is that it can be prepared within seconds as compared to other forms of coffee. Instant coffee is manufactured with special processes so it will retain its flavor with just the addition of water and heat. They are available in either special powder or granulated form. Some of this coffee is put into special sachets that can be used like the traditional tea bags. Coffee is made for instant use by freeze drying or spray drying the beans after roasting and grinding them. Now a day's instant coffee industry has grown steadily, and has become one of the most popular kinds of coffee drunk by millions of people around the world.