Grinder Converter
Communicate Grind Size.
CoffeeOS aims to bring everyone to the same page when communicating grind size. Having a specific value to tie to your technique allows you to not only have a trackable target, but also communicate your recipe to others.
Whether you're a beginner or a pro, everyone needs a brew ratio calculator. Any units, any starting point, whatever you need it for, the Brew Ratio Calculator is ready to make your life that much easier.
Convert between grinders
Flipping between grinders in CoffeeOS maintains the size and description and sets the newly selected grinder to the correct setting.
Extensive selection
Choose from a list of hundreds of different known grinders, or build your own in the Grinder Manager tool.
Dynamic grinder display.
All grinders have a different setup. CoffeeOS builds grinders based on printed numbers or bigger lines, number of clicks between each number, and whether or not it has multiple rotations.