How to Choose a Coffee Machine For Pods Pod machines operate by reading the barcode at the top of the pod (which is actually a disc of sealed, pre-dosed ground beans that are encased between two layers of filter paper). Simply insert it into the machine and push the button. https://www-coffeee-uk86269.slypage.com/28838149/ten-things-you-ve-learned-in-kindergarden-to-help-you-get-started-with-pods-coffee-machine