Essentially, there are two types of grinders – burr and blade. While both types will do the trick, you’ll get the best cup of coffee when using a burr grinder.
Burr grinders crush the beans between a moving grinding wheel and a non-moving surface, giving a finer and much more consistent grind.
The blade grinder cuts up the beans, and the fineness depends on how long you let the grinder run. The blade grinder will give you coffee that is uneven in size which will result in an inconsistent brew quality. Another downfall is that if you are grinding finely, the beans will be in the grinder for a longer period of time creating significant heat from the blades. This may give your coffee a burnt taste.
Blade grinders are fine for basic use, but if you want to get more out of your coffee beans, consider using a burr grinder.
1. Ensure the grind setting is right for the method of application i.e. plunger or stovetop.
2. Only grind the amount you need for the coffee you are going to make.
3. It is important to use the right amount of coffee.