How to Choose a Coffee Machine For Pods Pod machines read the barcode located on the top of each pod (which is an undosed disc of sealed ground coffee compressed between layers of filter paper). It is easy to insert it and push a button. Pop in an espresso pod https://coffeeeuk39639.thenerdsblog.com/33898691/check-out-how-pods-coffee-machine-is-taking-over-and-what-you-can-do-about-it