How to Choose a Coffee Machine For Pods Pod machines scan the barcode that is located on the top of each pod (which is a disc of pre-dosed, sealed ground coffee, pressed between layers of filter paper). Simply insert it and press a button. Pop in an espresso pod, and https://wwwcoffeeeuk36618.prublogger.com/27955083/10-things-everyone-has-to-say-about-pods-coffee-machine