JoeFrex Basic Knock Box


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Small, but imminently sturdy, the JoeFrex Basic Knock Box comes in an unassuming gray or an in-your-face red. Made of space age plastic, the silicone covered knock bar is easy to remove and both pieces can be tossed in the dishwasher for fast cleaning. Unlike the rest, this item's knock bar is shock absorbing and made of food safe silicone. The knock box can take plenty of mucky espresso pucks and it will stay in place with a rubber buffer on the bottom.


Width 4.0625 inches length of knock bar
Depth 4.4375 inches
Height 4.0625 inches
Material Plastic
Manufacturer JoeFrex


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Good but slightly flawedReview by KC
I'm new to this process so I didn't expect there to be an art to knocking pucks from an unpressurized PF but with this little guy there is a bit of one. With it being fairly small and having no "backsplash" and add in the thick bar, the puck tends to shatter and send grounds (thankfully dry) all over my countertop. May take a bit more finesse.Cute little thing and the bar is sturdy as heck. I do like being able to pop the bar out and clean the whole thing easily so I hope it's just a learning curve on my part. (Posted on 4/21/2013)
good looking & good valueReview by By The Bay
I almost went with the red version, but decided to be practical and order the black. So glad I'm not having to wash the box every day! (Posted on 2/16/2013)

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Warranty Information for the JoeFrex Basic Knock Box

What it Covers:

JoeFrex tampers, tamp stands, tamp bases, tamp handles, knock boxes, cleaning brushes and shot glasses

Length: 2 Year
Who Supports the Warranty: Seattle Coffee Gear
Warranty Contact Information: 866-372-4734 or email at
Notes: Please note that the warranty is valid on all items except for knock box bars. Read more about Seattle Coffee Gear's Warranty coverage.
Eligible for SCG Extended Warranty? No

Caring for the JoeFrex Basic Knock Box

  • Clean after each use with a light soap scrubbing. Dishwasher safe.



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