Why is grind size important for coffee?

Coffee grind size is no small matter. Controlling this variable allows you to improve the taste of your coffee, ensure repeatability, experiment with recipes, and more. Unfortunately, many a wonderful coffee has been let down by its grind profile.

How do coffee grinds affect brew time and extraction efficiency?

What are the disadvantages of using a coffee grinder?

If it has a pair (or more) of blades, it will cup up the coffee beans, and not offer a very coherent kind of grind. Some bits will be smaller, some will be larger. You have to keep twisting and shaking the coffee grinder, until all the bits a cup up. Unfortunately this often results in bits too fine, and bits too large.

Why does coffee taste better with a coarse grind?

Like with tea, the smaller the surface area the easier it becomes for the flavor to go off and end up too bitter or acidic. Most often, you end up with a better cup of coffee if you use a coarser ground coffee with a longer brewing time. This is because a coarse grind offers a more ‘complete’ flavor, as the steeping time is just right for that.

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