Most coffee machines are automatic and smart technology-based. For the automatic coffee machines, there is a place like a grinder for coffee grains where you need to put coffee powder and then switch on the device, set the timer, temperature, and mode for the type of coffee you want, and then press the start button and wait for it to finish brewing. For the manual one, however, you need to attach the grinder with coffee grains there by yourself and then do the same by typing the digits or pressing buttons and waiting for the brewing to finish.