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The production and consumption of beer play an important role in the social, political and economic activities of many societies. During the fermentation process, many volatile and phenolic compounds are produced. Yeasts are the organisms responsible for the synthesis of more than 500 of these chemical compounds that bring desirable and undesirable characteristics to the sensory profile of a beer. This paper studies the importance and impact that esters have on the sensory characteristics, responsible for the floral and fruity aromas and flavors in the beer, giving an overview of the elaboration and care to be taken.