Taking into account the total content of caffeine in the green tea leaves (27.0 mg/g), the recovery of caffeine (mass of caffeine in the extract/mass of caffeine in green tea leaves × 100) at 343 K,30 MPa and 210 min of extraction were 48.3% and 52.6% using CO2+ EL in the static and dynamic modes respectively, while recoveries lower than 40% were obtained with the other cosolvents (see Tables 2 and 3). This result is in agreement with previous results reported by the authors [32] regarding the effectiveness of ethyl lactate in comparison with ethanol or ethyl acetate in the pressurized liquid extraction of caffeine from green coffee beans.