INSTANT COFFEE Meher Ansari
Instant coffee is soluble coffee. When, in 1901 a Chicago based Japanese chemist invented a process of making soluble coffee no one knew this will become a popular beverage known as ‘instant coffee’. There are two species of coffee beans in the world: Coffea arabica and Coffea robusta. Coffea arabica is grown in Latin America, India and Indonesia; takes longer to fruit, is expensive and is generally used freshly brewed. Coffea robusta is grown in Africa, India and Indonesia; has a strong flavour, cheaper to grow and it is often used to make instant coffee. Making instant coffee involves a number of steps. First the coffee is roasted, ground, brewed and extracted mechanically and filtered under pressure. Then the filtered extract is concentrated. Then the concentrate is dehydrated by spray drying and evaporating the water or by freeze drying and removing ice crystals. Instant coffee powder thus obtained loses its flavour in the process that is added before packaging.