“…Agronomy Maringá, v. 32, n. 4, p. [635][636][637][638][639][640][641]2010 and aroma (AMORIM; SILVA, 1968;FELDMAN et al, 1969;GNAGY, 1961;LOCKHART, 1957;OLIVEIRA et al, 1977;VALÊNCIA-ARISTIZABAL, 1972). Coelho and Pereira (2002) define the coffee quality as a more broadly drink, as follows: a) chemical composition of grains, determined by factors genetic, environmental and cultural, and mainly by the interactions among them; b) methods of harvesting, processing and storage; c) roasting and preparation of drink. According to the same authors, the roasting and drink preparation influence the modification of chemical constitution of grains, and emphasize that these changes are dependent on their original composition.…”