Espresso knockbox coffee can

by ewindisch, published

Espresso knockbox coffee can by ewindisch Jun 15, 2013


Used Espresso grinds have to go somewhere!

Knockboxes can start at $30 each... but you can make one at home for the cost of a flexi-straw, a screw, and an old coffee can!

Note that because there is no shock absorption, this could damage your portaholder or filter baskets. So far, I haven't noticed any damage to my own equipment, but your mileage may vary.

Flexi-straws are food-safe, but if it cracks, it could expose the non-safe screw underneath. For maximum safety, I recommend using a stainless steel screw. Warning: I do not guarantee the food safety of this Thing.

Recent Comments

view all

Good!! :) :) Try the coffe www.myespresso.it

More from Kitchen & Dining

view more

Liked By

view all



Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag. Print Thing Tag


You will need:
1) Empty coffee can
2) 5" long stainless steel screw and matching nut
3) Flexi-straw
4) Scissors
5) Drill


  1. Drill holes near top of coffee can.
  2. Cut flexi-straw to fit over the long screw.
  3. Slide screw through side of the coffee can,
    covering the threads with the straw.
  4. Attach nut.
  5. Knock the coffee out of your portafilter!

Good!! :) :) Try the coffe www.myespresso.it