How to Choose a Coffee Machine For Pods Pod machines scan the barcode located on the top of each pod (which is an undosed disc of sealed ground coffee, pressed between layers of filter paper). Simply insert it and then press the button. Put in an espresso pod, and this https://www.34630194.xyz/6x1kchl-xo8ujwo-yx8-8mzi60-2n12j-2448/