Grindenstein is a compact coffee knock box that bangs out your coffee grinds. It’s super strong and sturdy, and even tucks away on the drip tray of your espresso machine for space-saving storage.
 
Key features:
- Large Coffee Grind Knock Box and Espresso Dump Bin
- Designed to be stored on the espresso machine's drip tray
- Grindenstein's patented shock-absorbing design and solid steel core make it truly impossible to break
- Weight: 0.47 kg
-Capacity : 16 pucks of discarded coffee / 850ml
- Materials: ABS plastic, Santoprene rubber coated steel bar
- BPA safe