Note: When the coffee capsule machine does not produce water, not because it is defective, but because there is air inside that needs to be emptied first. Please refer to the operation method of the video on our page. Do not put any coffee capsules in the coffee machine, and put water into the coffee machine. Do not cover the top cover, turn on the machine, cover the top of the coffee machine with your palm and tap it until water comes out, then you can use it normally. Fast automatic heating: The portable espresso maker has an intelligent heating function that heats up quickly in 7-8 minutes if you use cold water and choose the hot brew mode. Use hot water and select the hot brew mode, get fragrant coffee immediately. Using cold water and choosing the cold brew mode makes it easy to make coffee quickly. Easy to Use: With one-click and automatic extraction, this espresso machine is easy to use. 3 different extraction modes give you the ability to prepare your coffee to your taste. Cleaning is just as easy, and automatically clean with one click. If hot water is added, long press to brewing coffee. When adding cold water, double clicks to automatically heat the water, then long press to brewing coffee.