More particularly, the present invention relates to a process for producing an amino acid-containing Dutch coffee, and more particularly, to a process for preparing coffee having a roasted coffee bean, which comprises pulverizing a roasted coffee bean, a coffee bean pulverizing step, A step of feeding the coffee powder so that the coffee powder is placed between the circular paper filter impregnated in the purified water, the coffee powder extracting step of adding the purified water into the Dutch coffee maker into which the coffee powder is introduced through the step of injecting the coffee powder, An aging step of aging the coffee stock solution extracted through the step of extracting the coffee stock solution, and a dilution step of mixing and diluting the amino acid and the purified water with the coffee stock solution aged through the aging step.The Dutch coffee produced through the process described above is excellent in flavor and contains amino acids, and exhibits effects such as improvement of blood circulation, improvement of male sexual function, activation of brain, improvement of muscle growth and secretion of growth hormone.본 발명은 아미노산이 함유된 더치커피의 제조방법에 관한 것으로, 더욱 상세하게는 로스팅된 커피원두를 분쇄하는 커피원두분쇄단계, 상기 커피원두분쇄단계를 통해 제조된 커피분말을 더치커피 제조기에 투입하되, 정제수에 적신 원형의 종이필터 사이에 상기 커피분말이 위치하도록 투입하는 커피분말투입단계, 상기 커피분말투입단계를 통해 커피분말이 투입된 더치커피 제조기에 정제수를 투입하여 커피원액을 추출하는 커피원액추출단계, 상기 커피원액추출단계를 통해 추출된 커피원액을 숙성하는 숙성단계 및 상기 숙성단계를 통해 숙성된 커피원액에 아미노산 및 정제수를 혼합하여 희석하는 희석단계로 이루어진다.상기의 과정을 통해 제조되는 더치커피는 풍미가 우수할 뿐만 아니라, 아미노산이 함유되어, 혈액순환 개선, 남성 성기능 향상, 두뇌활성화, 근육성장 및 성장호르몬 분비능력 향상 등의 효과를 나타낸다.
