How to Choose a Coffee Machine For Pods The pod machines read the barcode on the top of the pod (which is actually an un-sealed disc of pre-dosed ground coffee compressed between two layers of filter paper). It is easy to insert it and press the button. Inject an espresso https://coffeee-uk69138.vidublog.com/27836586/pods-coffee-machine-is-the-next-hot-thing-in-pods-coffee-machine