Not much work has been reported on evolution of aroma
attributes from the green coffee bean stage to the brewed coffee
stage. All forms of coffee are available in the retail for consumer
purchase in the form of green coffee bean, whole roasted coffee
bean, ground coffee, and brewed coffee drinks. Because coffee
aroma is the major factor in purchase decision, it is crucial that the
industry be able to understand the aroma attributes present in each
stage, and also how the attributes develop during the process of
making the coffee drink. The major objective of our study was to
identify the change in aroma characteristics as a result of roasting,
grinding and brewing processes in three coffee bean varieties. The
effect of bean origin (El Salvador, Hawaii and Ethiopia) and levels of
roast (light, medium and dark) on the evolution of aroma attributes
were also studied.