Beginner custom coffee maker here (Kalita Wave). Can you really tell a difference between burr and blade grinders in a blind testing? Considering everything else is equal (method, beans, etc...). Also, how much do you think percentage wise the grinder contributes to the end product?
Yes 100%
The grinder is the most important part outside of the coffee itself
Three pillars of coffee: the coffee beans, the grinder, and the water. Any one of the three is bad, the stool falls over. Blade grinders leave a variability of fines and boulders, yielding under- and over-extracted flavors. They don't cancel eachother out, so it just makes the cup taste muddy. A good burr grinder will leave minimal fines, and a uniform max size of grounds. Final cup should have clear flavor, and grinder is a big part of that.
Can you really tell a difference between burr and blade?
Three pillars of coffee: the coffee beans, the grinder, and the water. Any one of the three is bad, the stool falls over. Blade grinders leave a variability of fines and boulders, yielding under- and over-extracted flavors. They don't cancel eachother out, so it just makes the cup taste muddy. A good burr grinder will leave minimal fines, and a uniform max size of grounds. Final cup should have clear flavor, and grinder is a big part of that.
More on reddit.comBurr vs Blade Grinder
The difference really is HUGE the blade grinder will cut up the beans and you’ll loose flavor and you’ll get an inconsistent grind. Burr is a lot better for a consistent grind and better tasting coffee. I’d recommend if you’re on a budget getting a hand burr grinder.
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