A burr mill, or burr grinder, is a mill used to grind hard, small food products between two revolving abrasive surfaces separated by a distance usually set by the user.[1][2] When the two surfaces are set far apart, the resulting ground material is coarser, and when the two surfaces are set closer together, the resulting ground material is finer and smaller.[2] Often, the device includes a revolving screw that pushes the food through. It may be powered electrically or manually.
Burr mills do not heat the ground product by friction as much as blade grinders ("choppers"), and produce particles of a uniform size determined by the separation between the grinding surfaces.[1]
Food burr mills are usually manufactured for a single purpose: coffee beans, dried peppercorns, coarse salt, spices, or poppy seeds, for example.[3] Coffee mills for volume consumption are usually powered by electric motors, but fast and precise manual mills have experienced an uptick in popularity in the 2020s for individual-serving pour-over and espresso. Domestic pepper, salt, and spice mills, used to sprinkle a little seasoning on food, are usually operated manually, sometimes by a battery-powered motor.
- ^ a b Cite error: The named reference
Steiman 2015was invoked but never defined (see the help page). - ^ a b Cite error: The named reference
Stephenson 2015was invoked but never defined (see the help page). - ^ Easto, J.; Willhoff, A. (2017). Craft Coffee: A Manual: Brewing a Better Cup at Home. Agate Publishing. p. pt69. ISBN 978-1-57284-804-7. Retrieved 14 October 2017.
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