Let’s get one thing straight right off the bat: The best coffee grinders are your ticket to the best brewed-at-home coffee. You could venture through the forests of Ethiopia, harvesting Geisha beans yourself and spend years honing the perfect pour-over technique, but without a good grinder, that fancy coffee is going to taste like flat coffee-flavored La Croix.
Jenna Gotthelf—Counter Culture Coffee's national wholesale education manager, who has competed in over a dozen US Coffee Champs Brewers Cup and Barista competitions, up to the national level—explains the power of a good grinder thusly: “We can't just drop whole bean coffee in water and expect anything to happen. We need to smash coffee into smaller pieces so water can access all the things we want to get out of it, like flavor and caffeine.” The better your coffee grinder is, Gotthelf says, the better you’re able to access all of that good stuff for coffee brewing.
The reasons for this are pretty simple: When you grind coffee, you increase the surface area that's exposed to oxygen. Grinding your beans right before brewing gives the oxygen in that air less time to react with and remove all the wonderful flavor-producing chemicals you actually want to taste. Hence, taking the extra step to grind beans before you make coffee, rather than buying pre-ground coffee, improves your coffee's taste.
Gotthelf and Josey Markiewicz—the senior director of coffee quality and education at La Colombe Coffee Roasters—both compare a good coffee grinder to a high-quality knife. “If you use a butter knife to cut a steak, you are going to have to work harder than if you were to use a higher quality steak knife. Sure, that steak will slice but the job is easier with better tools,” Gotthelf says.
The Best Coffee Grinders, at a Glance
Those beans won't grind themselves. Kickstart your coffee routine right here with our top pick coffee grinders.
What makes a good coffee grinder?
Even a mediocre grinder will produce coffee that tastes leagues better than the pre-ground stuff. But as we've spent time putting a wide range of coffee grinders through the wringer, we’ve learned that a truly exceptional grinder does more than just get you great coffee. A great grinder is easy for your pre-coffee brain to set up, use, and clean; a great grinder doesn't take up too much precious countertop space; and a great grinder isn't so loud that it wakes up every person, pet, and critter in your home.