As a coffee lover, I've got coffee hardware to match. 27 kilograms of chrome coated coffee extraction goodness on the kitchen sink, baby. We're not talking drip coffee. No, no. This coffee gets made a 10 atmosphere. Es-press-o. The coffee grinds remaing in puck, after having created a tasty cup of coffee, usually need a fair amount of convincing (smashing, hitting, whacking) to drop out of the portafilter. Some people have a so-called knock-box for that. Not the docter Seus type, but a shiny metal box, sometimes placed under the espresso machine, with a rubber-coated bar in it, on which to whack the portafilter until the coffee grinds drop out.
As I have fairly limited space in the kitchen, I prefer not to have yet another big kitchen utensil for coffee making in there. So for removing coffee grinds from espresso portafilters, I have been using a wooden mallet. My so called coffee-puck smasher. This small walk through shows you the steps I made to create a replacement mallet for my old and smashed-to-pieces coffee-puck smasher.
The size of the mallet described here: 5.5 x 10 x 17 cm.
- jigsaw with wood blades
- electric sanding machine
- dremel with cylindrical wood sander
- small ruler
- a hair dryer (or anything able to blow hot air)
- bees' wax / sno seal / mineral oil
- a block of strong wood big enough to make a mallet from (10 x 6 x 15 cm. or bigger)
Step 1: Preparations; Find wood
What size must the mallet be? Just make a mallet big enough so that it has enough mass to do the smashing you want it to do.