How to Choose a Coffee Machine For Pods The pod machines read the barcode located on the top of each pod (which is a disc of pre-dosed, sealed ground coffee that is pressed between layers of filter paper). You simply insert it and then press a button. This machine will https://coffeee32356.tinyblogging.com/pods-coffee-machine-it-s-not-as-hard-as-you-think-72119442