Depending on the model, it should be a fully automatic coffee machine with a bean grinder and a thermos. You can set the time/quantity of coffee brewing according to the prompts on the control panel. For details, please refer to the self-contained instructions. Generally, you can put in coffee beans, press the start button, then start grinding beans, and then filter them automatically. The steam valve will flush steam into the coffee strainer, and the fragrant coffee will be finished. The thermos can keep warm for more than 12 hours.