Large Flat Burr Grinders > 80mm
Large flat burrs can have some advantages over small flat burrs for grinding coffee. Here are a few points to consider:
Heat during grinding: Large flat burrs tend to generate less heat than small flat burrs during the grinding process, as they have a larger surface area and they grind faster. This can help to preserve the flavor and aroma of the coffee beans, as excess heat can damage the beans and affect their flavor, sometimes create an off, somewhat burnt flavor.
Particle size distribution: Large flat burrs can also produce a more uniform particle size distribution than small flat burrs, as they can produce a generally finer and more consistent grind size. A more uniform particle size distribution is generally considered to be desirable, as it can lead to a more even extraction of the coffee and a more balanced taste in the cup.
Speed: Large flat burrs tend to have a faster grinding speed than small flat burrs (depending on the RPM of the grinder), as they have a larger diameter and a larger surface area. This can be an advantage for preserving the flavor and aroma of the coffee beans. In general they are able to grind a dose of coffee or large amounts of coffee quickly, depending on the specific design of the grinder and the type of coffee beans being used.
In general, large flat burrs can offer some advantages over small flat burrs for grinding coffee, including a lower heat generation, a more uniform particle size distribution, and a slower grinding speed. However, the specific performance of the burrs can also be influenced by other factors such as the design of the grinder and the type of coffee beans being used.