The Convenience of Pod Coffee Machines Pod coffee machines utilize preportioned beans that are packed into capsules made of plastic or aluminum. They are convenient, however they are more expensive in the long run than bean-to cup machines and have a negative impact on the environment. Bruvi's B-Pods are biodegradable, https://www-coffeee-uk49991.worldblogged.com/34150499/a-provocative-rant-about-capsule-coffee-machine