Replace Your Knock Box Bar: Quick Steps
By Bella Barista | Published: 2026-10-24
Category: Tips & Care
Learn how to swap the worn bar on your Cafelat Tubbi knock box. This quick guide covers removal, cleaning, and installing a new replacement bar to keep your espresso station clean and functional.
Quick Answer
Replacing the bar on your Cafelat Tubbi knock box is a simple, tool-free job. You just remove the old bar, clean the holder, and snap in the new replacement bar.
Why the Replacement Bar Wears Out
The knock bar takes repeated impact from espresso pucks, so the rubber coating eventually cracks or the metal core bends. A worn bar can leave residue on your portafilter or fail to knock the puck cleanly. Replacing it restores a firm, clean knock and prevents damage to your knock box holder.
How to Replace the Knock Bar
- 1. Remove the Old Bar: Hold the knock box steady with one hand. Grip the bar at both ends and pull it upward out of the holder slots. It may be snug, so use a gentle rocking motion. Do not pry with a tool — you could scratch the holder.
- 2. Clean the Holder Slots: Wipe the two slots where the bar sits with a damp cloth to remove coffee oils and debris. Let them dry fully before installing the new bar. Residue can prevent the new bar from seating flush.
- 3. Install the New Replacement Bar: Align the ends of the new Cafelat Tubbi bar with the slots. Press down firmly and evenly until you hear or feel it click into place. Give it a gentle tug to confirm it is secure. If it does not click, check that you have the correct size bar for your knock box.
Product Fact
- Cafelat Tubbi Replacement Bar for Knock Box: This replacement bar fits the large Cafelat Tubbi Knock Box (185mm) and small size (175mm). Measure your existing bar or check your knock box model to order the correct size — the large and small bars are not interchangeable.
Cafelat Tubbi Replacement Bar for Knock Box
