There’s something about making a cup of coffee that riles people up. Somehow, each debate breeds its own sub-debates — brewer vs. pour over. Hario vs. Chemex. Medium grind vs. coarse grind, and so on.

A creamy shot of espresso is the caviar of the coffee world. However, replicating outside of a cafe can feel difficult, which is why we enlisted two coffee experts to test the best home espresso ...