The next evolution of our slow feeder design now powered by two AA batteries along with a metal bean chamber.
Slow feeding is a great way to improve the flavour out of your grinder enhancing clarity and sweetness. Manually dropping in beans gets old pretty quick though! Enter the Madkat Bean Feeder! 😀
Adjustment knob on the side to allow you to adjust the feed rate to your liking plus a switch so you can leave setting to come back to.
Currently supporting all Option-O grinders including Lagom 01, P100, P80, P64 along with the EK43, Timemore Sculptor 64/78, Weber EG-1 and Zerno Z1/Z2
Dimensions: 125mm x 75mm x 100mm
Weight: 450g
Package includes:
1x Feeder
1x Adapter to suit your grinder.
Parts are 3D printed using PETG along with stainless steel and aluminium inserts.









Kyle Gosiaco –
Bought this for my Zerno Z1 and I’m very happy with the results! My brews are clearer and tastier than ever. It was also very easy contacting and ordering MadKat. Highly recommended.
Edison Hou –
Having tried almost every slowfeeder, this is the one that suits my palate the best. The speed control is both slow and fast enough for different grinders. (I prefer grinding without pausing while bean by bean)
100% recommanded!
Keina Oikawa –
My P80 has been upgraded into an even more incredible grinder.
This slow feeder is extremely simple to install and operate, and it’s very easy to fine-tune it to your ideal feeding speed.
As a result, the cup quality has become remarkably clear, with delicate flavors expressed more distinctly than ever.
Their work is truly outstanding.
I’ll be ordering a dedicated adapter for my Zerno Z1 soon as well.