<p>커피기계 운용(에스프레소 머신) - 커피 추출 5 에스프레소 머신<br></p><p><br></p><p><a href="https://www.youtube.com/watch?v=QVdN8K-vKWY&amp;list=PLt-u4_T_AxGSUXgu6PEEV4y236elrL60S&amp;index=19" target="_blank">https://www.youtube.com/watch?v=QVdN8K-vKWY&amp;list=PLt-u4_T_AxGSUXgu6PEEV4y236elrL60S&amp;index=19</a><br></p>