What Is a Coffee Knock Box? (Updated 2026)
Home / Coffee Guide Coffee guide • Updated 2026 What Is a Coffee Knock Box? (Updated 2026) Reviewed and updated October 9, 2026 The short answerA coffee knock box is a sturdy container with a padded crossbar. After brewing espresso, you tap the portafilter basket against the bar so the compacted coffee puck falls into … Read more