We may earn compensation from the products and offers mentioned in this article. However, any expressed opinions are our own and aren’t influenced by compensation. To read our full disclosure, click here. Single-Serve Coffee Machine: How Coffee Capsules Work  With the majority of single-serve coffee pod machines, such as the Nespresso VertuoPlus, you load water into...

By Silvia Carli-Reese MS, RD, CSCS