Roasting coffee beans changes the chemical and physical properties of green coffee beans. Roasting helps in bringing out the flavour of the beans by causing them to expand and to change colour, taste and smell. As green coffee is more stable than roasted, the roasting process tends to take place close to where it will be consumed. This reduces the time that roasted coffee spends in distribution, giving it a longer shelf life. The vast majority of coffee is roasted commercially on a large ... Read more