Our top pick is the homeffect Knock Box. A knock box isn’t integral for making good espresso at home, but it keeps things efficient and tidier. Centered around a rubber-coated bar or pad, it's ...

We tested the Puck Sucker and liked it, though we can't universally recommend the knock box. Go into a coffee shop and you’ll hear the thwacking of baristas knocking out spent espresso pucks. Espresso ...