Blade Grinders are essentially a coffee blender, coffee beans are placed in a container (a little like a Nutri-bullet) and whizzed up for a certain amount of time until the coffee resembles the level of coarseness required for your brew method. The nature of blade grinders means there is no way to break up the coffee beans into consistent size particles and the resulting coffee grinds are of various sizes. Inconsistently ground coffee, when brewed in any method, will result in large particles under extracting and small particles over extracting. This will almost certainly lead to a below-par coffee. Burr Grinders work by coffee passing through two mechanical burrs (either conical or flat, see below) that essentially crushes the coffee into small enough pieces to pass through and into a chamber where the grounds are either collected in a box or caught in a portafilter. A burr grinder is the industry standard for coffee grinders. The consistent size of the coffee grounds alongside the ease in which you can adjust the coarseness makes it the only choice for anyone who wants to experience the delightful flavours speciality coffee offers. If you want to learn more and see what our favourite burr grinders on the market are, check out: The Importance of Burr Coffee Grinders |
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