The answer is: it depends.
There are two main burr shapes: flat and conical. The debate over which is “better” continues to this day. There is a slight difference in how the two types work, but in general, the results are similar.
In general, flat burrs are generally more popular with the manufacturers of high-quality electric grinders.
They are more consistent and more expensive. Depending on the model, they can also be noisy and heat up quickly unless there is good ventilation.
In contrast, most conical burrs are quieter, cooler, and cheaper, but less consistent. They are often used in modern hand grinders,
You need to figure out what is important to you. Do you run a boutique coffee shop where precision is key? Or are you a morning person who wants a basic home grinder that won't wake up the family?
It is important to remember that burrs are not the only factor that determines the quality of the grinder. Is this machine well built? Is it suitable for the drink you want to make? If you need to repair or replace it, is it well supported?
Once you have the answers to these questions, you'll be able to make the right purchase choice when faced with dozens of coffee grinders.
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