What is the difference between stepped and stepless adjustment?

When choosing a coffee grinder, the adjustment mechanism is one of the most important features to consider. A stepped grinder is designed with a series of pre-set 'clicks' or notches. When you turn the adjustment collar, you feel a physical click as the grinder locks into a specific position. This is incredibly helpful for beginners or those who brew multiple methods, as it allows you to easily return to a previous setting—for example, moving from a '10' for pour-over back to a '4' for espresso.

Stepless grinders, on the other hand, do not have these fixed notches. Instead, they use a worm gear or a sliding collar that allows you to move the burrs in microscopic increments. This provides an infinite range of grind sizes between the coarsest and finest settings. For espresso enthusiasts, this is a game-changer. Espresso is highly sensitive to grind size; a change of just a few microns can be the difference between a sour, under-extracted shot and a sweet, balanced one. Stepless adjustment gives you the precision required to 'dial in' that perfect extraction.

While stepless offers more control, it can be more difficult to navigate. Without the reference points of 'clicks,' it is harder to switch back and forth between different brew methods. If you frequently switch between brewing French press and espresso, a stepless grinder might feel cumbersome, as you will have to 'guess' your way back to your preferred settings.

In practice, the choice comes down to your brewing habits. If you are primarily an espresso drinker who wants to fine-tune every variable, a stepless grinder is the superior choice. If you value convenience, repeatability, and brew a variety of methods, a high-quality stepped grinder will likely serve you better. Both types can produce excellent coffee, provided the burrs are of high quality and properly aligned.