Generally speaking, when starting the machine for the first time, first check whether there is a water quality filter. If there is, first put it into the water tank, and then check whether there is a water quality test paper. If there is, test the hardness of water, then put it into the water tank, turn on the power supply, start the main switch, don't make coffee for the first time, first turn it to the steam pipe hot water mode, first release about 100ml hot water, turn off the steam/hot water switch, and Then take down the powder bin to dry the water, put a proper amount of coffee powder into the powder bin after compaction, start the coffee making button or adjust the water quantity before starting, when making milk bubbles, turn the steam/hot water knob or button to the steam position, open the valve switch to release a proper amount of steam, then close it, dry the steam pipe, put it into the milk tank, open the steam valve to start heating and blow off the milk bubbles, and blow off the milk bubbles at the temperature of 60-65 degrees. After making coffee, remove the handle powder bin, empty the cleaning powder bin, start the coffee making button again, release about 40ml of hot water to wash the top water outlet, clean it with a matching brush, then put it into the powder bin, turn off the main power switch, and operate the essentials. After the water quality test for the first time, start the water quality test program according to the instructions when turning on the main power supply, and then release 100ml hot water to flush the water outlet and powder bin. Then start making coffee, usually pay attention to the essentials. Before starting each time, check whether there is water in the water tank, remove the powder bin and put coffee powder, then start the coffee making program button, put about 40ml of hot water into the powder bin and adjust the water volume to start making coffee. When the milk bubbles, start the steam first (heating and disinfection), then start the steam again (heating and sterilization), and finally take out the milk bin and start the steam (cleaning and disinfection) for the third time to dry the steam pipe. If this machine is used,