Before we delve into the world of coffee roasting, you need to know why we need to roast coffee beans. Before roasting coffee beans are green in colour and devoid of the characteristic coffee aroma. When we roast these green coffee beans, it leads to the formation of aromatic compounds which impart the beans the coffee aroma we’re accustomed to. The degree of roasting helps in determining the flavours and aroma of the coffee beans.
A lot of variations can be created altering the roast degree, roast time and the type of beans. For a beginner, you shouldn’t worry about creating your custom roast, you should learn about the three most common types of roasts.
Light roast – The easiest way to identify a light roast bean is by its colour and aroma. Light roasted beans are light brown in colour accompanied by a fruity smell. Average roast time varies from 7-9 minutes.
Medium roast – Medium roasted beans are medium brown in colour and are slightly sweeter in taste as compared to light roasts. This is the most commonly preferred roast type among most people as they have a balanced flavour, aroma and acidity. Average roast time varies from 14 -18 minutes.
Dark roast – Dark roasts can be recognized by the shiny black colour of the beans. These are bitter in taste and usually used to make espresso drinks. Average roast time varies from 25- 30 minutes.
Now that you know the basics, it’s time to get started with choosing your own roasted beans.