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Blade Grinder – Why You Shouldn't Use One Blade grinders have blades that resemble a propeller (think blenders). They are used to chop coffee beans. They are cheaper than burr mills, and easier to clean, however they don't produce uniform ground and can cause bitterness or over-extraction in your brew. To enjoy a top-quality coffee experience, you need uniform distribution of the particles. This can only be achieved by using burr mills. This is the reason why coffee lovers hate them. Inconsistent Grinds If you've been using a blade grinder for a long time there's a good chance that your grinding results have been inconsistent. The grinder is likely to be worn out and dull. As Related Home Page wears out it will break up beans into various sizes. This can lead to different levels of coarseness. It's difficult for your coffee maker to extract a consistent, balanced flavor due to the different sizes of the particles. A blade grinder makes use of an e-rotating blade that resembles a propeller to break the beans. It chops beans into smaller and smaller pieces, which are then put into a catcher, which is then filtered through the screen. Although this method is effective however, it's not the best method to get the perfect grind for your drink. Burr grinders are a better choice. A burr grinder is a much bigger machine, with a large motor and two grinding burrs. The burrs are placed at an exact distance from each other and this determines the degree of coarseness of your ground coffee. When the burrs are too close to each other, they will crush the beans, rather than cutting them. The result is a more fine more refined, less coarse ground. They can also be brittle and alter the taste of your coffee. On the other side when the burrs are placed too far apart, they will produce large chunks of coarsely ground coffee. It's important to choose a grinder that's setting is in line with your desired coarseness. A sharp, well-adjusted blade will produce a consistent and fine grind for your coffee. If you notice that your grind is becoming more and more uneven, it's probably a good idea to replace the blade or burrs. It is also advisable to change the grind setting in case you haven't already to allow you to achieve a more uniform grind. If your grinder is producing clumped-up grounds this could be an indication that the blades are worn out or damaged. The clumping happens when tiny particles bind to one another, and larger pieces of ground are formed, making larger granules that won't dissolve in water. As your burrs get more and less dull it will happen more frequently. Uneven Extraction The size of your coffee grounds is important for flavor extraction, regardless of whether you're using a French press pour-over, drip or drip brew. Uneven sizes of the grounds cause uneven extraction, leading to an unbalanced cup of coffee. As the beans move through a blade grinder, they are sliced and shredded randomly, leading to an uneven distribution of the grind particle sizes. A blade grinder may produce an assortment of large fragments that are dust-sized, as well as everything between. The different sizes of grinds are extracted at different rates, leading to an inconsistent and often bitter cup of coffee. Uneven distribution can cause problems with tamping or filtration. With a burr grinder you can get an evenly ground particle size allowing for more uniform tamping and filtering that prevents over-extraction and weak brews. With a blade grinder it is more difficult to attain an even grind and you might be tamping from side to side or using the Stockfleth method (which requires some practice). The high speed and the heat produced by blade grinders is another problem. They can cause the ground to burn and produce a bitter flavor. Burr grinders create less heat and are cooler, thus preserving the flavor of beans. The blade grinder has one final disadvantage: it's easy to grind your beans to a fine. Running the grinder continuously generates a lot of heat, and eventually causes your beans to be over-extracted, resulting in a bitter brew. To avoid this, you should always stop the grinder before switching it back on. Blade grinders are an easy cost-effective method to grind coffee at home. However they're not the ideal option for those who are serious about their brewing. For the most effective results, you'll need to utilize a burr mill as well as whole beans. Invest in your the brewing experience and invest in an efficient grinder that will meet every aspect of your coffee needs! If you're looking to upgrade your blade grinder, take a look at our top picks for most efficient burr grinders on market. Choosing the right type of grinder is an important choice that will impact the brewing process and overall cup quality therefore, you should consider your budget, space, and the method you prefer to use when deciding on the best grinder. Grounds Burned Grounds A blade grinder employs a sharp blade to grind the beans. The blade spins at high speed similar to a blender. The blade's rapid movement produces heat, which can ignite some of the coffee grounds. These charred particles aren't good for brewing and can cause a bad taste in your cup of coffee. For a first-class experience the uniform distribution of particles is required for optimal flavour extraction. Since blade grinders break the beans into unevenly sized pieces, large and small it is impossible to achieve this level of consistency. A burr grinder, on the other hand ensures a uniform distribution of particles that can be replicated over many brews. While the benefits of a blade grinder are its low cost and quick execution, its main disadvantages are that it creates heat when it is used, creates inconsistencies in grind size, and lacks control over final particle size. With a little practice there are ways to improve results despite the inherent limitations of this kind of grinder. When using a burr mill, the user can easily alter their desired ground size by adjusting the distance between the discs. This allows users to extract the desired flavor every time from their favorite roast beans. It requires a lot of practice to make a great drink using a grinder blade. An angle grinder is a potent tool that should only be used only by trained personnel. It can cause grinding burn if it is used improperly. This causes localized changes to the metal surface of the workpiece. This can cause cracking and is not properly checked, could lead to macropitting and teeth fracture. Grinding burn is a serious problem that can be caused by a variety of reasons, including excessive grinding pressure, inadequate cooling, or inadequate training for operators. Wear the correct safety equipment when working with an angle grinder. This includes safety glasses, a face shield and steel toe boots. This will stop hot sparks from flying off the machine and hitting nearby equipment or people. These sparks are capable of reaching temperatures as high as 3,600 degF, and can be destructive to materials like paint or metal. Disappointing Brew A blade grinder can chop your beans in a random manner and leave you with different-sized grounds. These different sizes of grounds extract at different rates in your coffee maker which can result in a bitter or weak cup of coffee. This ruins the balance of a good cup. The soluble compounds from the beans are extracted slowly and create the flavor. You've probably heard it said that using a burr mill instead a blade mill is the best way for the best brew. But many people don't know how to use a burr mill or even what it can do so they opt to buy one of the flimsy, uncontrollable blade grinders that are readily available in kitchen and grocery store places. The grinders that are available for sale are essentially an angled blade with two pronged edges that sit in the middle of an enclosed chamber. It spins rapidly and chops everything it comes into contact with including your beans. The blade is activated by pressing the button. It then chops your coffee beans into different size pieces. Small pieces fall to the bottom and are then chopped again, while the large pieces remain at the top of the chamber. This causes uneven ground that are hard to accurately measure – which is why you can't be sure of how much ground coffee you made with your grinder. Another problem with these grinders is that they produce a lot of heat while they grind, which could burn your beans and ruin your coffee. The heat also takes away some of the flavor your beans, and you're left with a mediocre cup of coffee. If you've grind your own coffee with a blade grinder It's time to put it down it and upgrade to something better. A burr grinder can do the job at less than the cost and deliver a much better result. It's well worth the investment. If you're looking for more control over your beverage, try a manual burr grinder, such as the Rhino hand grinder. These grinders have burrs, however they are powered by an engine, which gives more control than an electric or plug-in grinder.