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A cider fermentation at laboratory scale with controlled inoculation with selected yeasts and malolactic bacteria was performed. The composition of the major volatile compounds with low boiling points (<145°C) was determined by gas chromatography throughout the fermentation process, under the different operating conditions of inoculation time of the microorganisms (simultaneous or sequential) and fermentation temperature (15°C or 22°C). Temperature had a more important effect on the levels of certain volatile compounds when the simultaneous inoculation method was used. It was observed that when fermentation temperature increased to 22°C, using the simultaneous method, the final concentrations of ethyl acetate and some of the higher alcohols decreased, while others maintained similar levels. In the sequential inoculation model, after completion of the alcoholic fermentation at 15°C, an increase in the …