SPACEKEY is a global technology brand dedicated to creating smart home appliances that improve your everyday life. Our goal is to provide more families with a healthy and convenient life. From our simple, clean design to the smart functions found in each of our devices and appliances, we create solutions that make everyday routines smarter and more convenient. How to keep the grinder from clogging? 1, Add coffee beans as needed each time. 2, Please clean the grinder and the ground coffee outlet every two weeks using the included cleaning brush. What is the purpose of the "hot water" function? 1, Purge the air from the internal tubing of the coffee machine. This is a necessary step for first-time use. 2, Warm the coffee machine and coffee cup. When will the heating progress bar flash? Each time it heats, the heating progress bar will flash. 1, Hot water - Heating once 2, Making espresso - Heating once 3, Making Americano - Heating once 4, Making milk foam - Heating twice How to switch between single and double cup volume? "grinder" button, "espresso cool" button, and "espresso heating" button are marked with 1 and 2 above them. Pressing once makes a single cup, and pressing twice makes a double cup. Is there any tips for making milk foam? 1, Preheat the espresso machine first (press the heating button), then press the steam button, heat up again to produce steam. 2, Start with cold, whole milk for the best texture. 3, Tilt the pitcher to hold the wand at a 45° angle. Press the espresso/heating button The heating progress bar flashes to indicate that heating is in progress. It stops flashing when it reaches the "OK" position, indicating that heating is complete. Turn the knob to the left. Hot water will flow from the steam wand and group head. Fill the ice water; Add coffee beans 7-15 Grind setting is suggested The coffee powder should be below the "MAX" line position Press the cold espresso button (single press get 1 shot, double press get 2 shots). Fill the water; Add coffee beans The grinding are the same as above. First press the espresso/heating button for heating. Wait for the heating progress bar to reach OK. Second press the espresso/heating button for extracting espresso. (single press get 1 shot, double press get 2 shots). First heating - press the espresso/heating button. Wait for the heating progress bar to reach OK. Second heating - press the steam button. Wait for the heating progress bar to reach OK again. Rotate the knob to the bottom mark. Tilt the pitcher to hold the wand at a 45° angle.