How to Choose a Coffee Machine For Pods The pod machines read the barcode on the top of the pod (which is actually a sealed disc pre-dosed ground coffee compressed between two layers of filter paper). You simply insert it and push the button. Pop in an espresso pod and https://coffeee-uk71798.59bloggers.com/28746160/what-the-10-most-worst-best-pod-coffee-machine-failures-of-all-time-could-have-been-prevented