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Blade Grinder – Why You Shouldn’t Use OneBlade grinders have blades that look like propellers (think blenders). They are used to chop coffee beans. They are cheaper than burr mills and are easy to clean, but they don’t provide a uniform grind and can cause bitterness or excessive extraction in your coffee.To get the best coffee experience, you must have uniform particle distribution. This can only be achieved using a burr mill. It’s no wonder coffee experts hate them.Inconsistent GrindsYou may have noticed your grinding results aren’t consistent in the event that you’ve been using a blade grinder over a long period of time. The grinding device is likely wear out and dull. As the grinder gets older, it will produce different-sized pieces of beans. This results in ground with different levels of coarseness. It’s difficult for your coffee brewer to extract the same, balanced taste with these different-sized particles.A blade grinder cuts the beans with a rotating blade that looks like a propeller. It chops beans into smaller and smaller pieces, which are then put into a catcher via the screen. This technique is efficient however it’s not the finest grind possible for your drink. A better alternative is a burr grinder. A burr grinder comes with an efficient motor that has two grinding burrs and is a larger machine. The burrs can be placed at a specific distance and will determine the degree of coarseness of the coffee that is ground.If the burrs are too close to each other, they’ll crush the beans rather than cut them. The result is a more fine, less coarse ground. They can also be brittle and affect the taste of your coffee. On the other side when the burrs are placed too spread out, they will result in large chunks of coarsely-ground coffee. It’s important to choose an espresso grinder with a setting that matches the coarseness you want.A sharp blade, adjusted correctly, will result in a fine and consistent grind for your coffee. If you find that your grind is becoming more and more uneven, it’s probably best to replace the blade or burrs. If you haven’t done this, you must change the grind setting to get more even grinding.If your grinder produces clumped-up grounds this could be an indication that the blades are worn or damaged. The clumping occurs due to small particles adhering to each other and larger pieces of ground producing larger granules which don’t dissolve well in water. As your burrs grow and more dull this will occur more often.Uneven ExtractionIf you’re brewing drip, French press, or pour-over, the size of your grounds play an important role in flavor extraction. Uneven ground sizes lead to uneven extraction and a sloppy cup of coffee.The beans are cut and shredded randomly as they pass through a blade mill, resulting in an unbalanced distribution of grind particle size. A blade grinder creates smaller fragments, smaller particles, and everything between. Different grind sizes are extracted at different rates, which results in a sloppy and often bitter cup of coffee.Uneven distribution can cause problems with tamping or filtration. With a burr mill, you can get an evenly-sized particle size that allows for more uniform tamping and filtering which prevents over-extraction and weak brews. With a blade grinder it is more difficult to achieve an even grind and you may encounter tamping that is inconsistent from side to side or using the Stockfleth method (which takes some time to master).Another problem with blade grinders is their high speed and high heat generation. This can cause the ground to become burned and produce a bitter taste. Burr grinders are cooler and don’t produce as much heat, which preserves the flavor of the bean.The final drawback of the blade grinder is that it’s extremely easy to over-grind your beans. The grinder will generate a lot heat and, eventually, your beans will become over-extracted. This can result in a bitter brew. To avoid this, you must pause your grinder before turning it on again.Using a blade grinder is a convenient and cost-effective method of grinding your coffee at home, however, it’s not the best option for those serious about their coffee-making. For the best results, it is recommended to make use of a burr mill and whole beans. You should invest in your making experience by purchasing a quality grinder that will deliver on every aspect of your coffee needs!We’ve compiled a list of our top picks of the best burr mills on market if you’re looking to upgrade your blade grinder. The kind of grinder you pick will impact the quality of your brewing and your cup. Consider your budget, space and preferred brewing method before making your decision.Grounds Burned GroundsA blade grinder employs a sharp blade to crush the beans. The blade rotates at high speeds, like blenders. As the blade moves at a fast speed, heat is produced which may burn up some of your grounds of coffee. These particles will alter the flavor of your coffee and aren’t ideal to brew.For a first-class experience an even distribution of particles is required to ensure the best flavor extraction. Because blade grinders break the beans into unevenly sized pieces, small and large, it’s impossible to get this consistency. A burr mill, however creates a uniform distribution of particles sizes that can be replicated over a number of brews.While the advantages of a blade grinder include its low cost and speedy operation, its major disadvantages are that it creates heat during use, produces variations in the size of the grind and lacks control over final particle size. With a little bit of practice, however, there are ways to maximize results despite the inherent limitations of this kind of grinder.When combined with a burr grinder, users can easily adjust the gap between the grinding discs, allowing them to fine-tune the exact ground size of their choice. This lets them extract the desired flavours every time from their favorite roast beans. However, making a good beverage using a grinder requires a lot of trial and trial and.Angle grinders are powerful tools that should only be employed by professionals. It can cause grinding burn when employed incorrectly. This causes localized changes to the metal surface of the workpiece. This can cause cracks that, if unchecked could eventually lead to macropitting and tooth fracture.Grinding burn is a major issue that can be caused by a variety of reasons, including excessive grinding pressure, inadequate cooling, or inadequate operator training. Wear the proper safety equipment when using an angle grinder. This includes safety glasses as well as a face shield and steel toe boots. This will stop any sparks of heat from flying off the machine and hitting equipment or people nearby. These sparks are capable of reaching temperatures as high as 3,600 degF and cause damage to materials such as paint or metal.Brew that is not what you expected.A blade grinder chops up your beans in a random fashion and leaves you with ground which are of different sizes. These different sizes of grounds extract at different rates in your coffee maker which results in the cup being weak or bitter of coffee. The issue with this is that it destroys the balance that makes a great cup of coffee. The soluble compounds in the beans are removed in time, and this creates the flavor that makes your coffee taste delicious.You’ve probably heard it said that using a burr mill instead blade mills is the best way to make the best brew. However, many people don’t know how to use a grinder or even what it is and so they purchase one of the cheap, uncontrollable, blade grinders that are easy to find in supermarkets and other kitchen-type places.The grinders that are available for sale are essentially a two-pronged blade that is located at the bottom of an enclosed chamber. It spins rapidly and cuts anything it comes in contact with, including beans. Coffeee is activated by pressing the button. It then chops your coffee beans into various size pieces. The small bits fall to the bottom and are chopped again, while the larger pieces remain at the top of the chamber. This causes uneven ground that are difficult to measure.These grinders could also burn your beans and ruin your coffee. The heat can also take away some of the flavor of your beans. This leaves you with an unappetizing cup of coffee.If you’ve been grinding your coffee yourself using a blade mill it’s now time to upgrade to a more effective. A burr mill can do the job at a fraction of the price, and produce an even better result. It’s well worth the investment. If you’re looking for more control over your brew try a manual burr grinder, such as the Rhino hand grinder. These grinders feature burrs however they are powered by the crank, which gives more control than an electric or plug-in grinder.