The Convenience of Pod Coffee Machines Pod coffee machines make use of pre-portioned beans that are sealed in aluminum or plastic capsules. They are convenient, but they are more expensive in the long run than bean-to cup machines and have an adverse impact on the environment. Bruvi's B-Pods are biodegradable https://coffeee-uk57600.dbblog.net/1567250/a-provocative-rant-about-capsule-coffee-machine