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What is the Bean Grinder on a Coffee Machine? If you want to be able make large cups of coffee with the click of a button, search for a machine which has a built-in bean grinder. This lets you to grind your own coffee beans and store them airtight for maximum freshness. They also have a portafilter and tamper, which is the device the barista uses to shape and compress the grounds. The used puck of coffee is ejected into an internal bin which usually has a visual prompt to empty it. Beans As opposed to other coffee machines that use pods, bean to cup machines make use of whole beans that you put into the machine. You can choose the quality of the coffee and experiment with various varieties until you find your favorite. Fresh beans can also save money when compared to the expense of buying pods or instant coffee powder. Additionally when you prepare your coffee the beans are ground immediately before brewing so they don't lose any of their oils that provide the flavor to the drink. Bean to cup machines have this advantage that makes them a great option for those who love coffee. Most models have a hopper you can fill with the beans of choice and a dial that allows you to choose the strength (dose) you desire. Some Gaggia machines have the option of setting it to a certain number of grams of coffee, which allows for more precise control. Many bean to cup machines will run a wash cycle prior to shutting off, and many will prompt you to run the cleaning or descaling solution at regular intervals. This is a useful feature to ensure your machine stays in good shape and does not require a lot of manual work on your part. This feature can also stop dirt from building up on the inside of your machine, affecting its the performance. Grinder This is a part that takes the beans and grinds them to a size that will suit your brewing method. These machines can be programmed with different grind sizes. The grinder is situated behind the machine. It uses six sections of the same shape to dispense ground coffee. The sections rotate and the amount that is dispensed is controlled with the push of a handle. The size adjustment for the grind is important because it determines how quickly water will invade and extract the flavor from the bean. A coarse grind is similar to kosher salt. It has large particles which can be diminished. Water will move slower through a coarse grind. A medium grind is closer to cornmeal and will invade the beans more quickly which makes them the best choice for brewing in the form of an immersion brew such as the Chemex or French press. We highly recommend investing in a manual grinder for your espresso machine, especially if you want to make specialty drinks that require the best extraction. Unlike whole beans, ground beans start to lose their color as soon as they come into contact with air (the breakdown of organic molecules, which leads to oxidation). A good manual grinder will help keep the coffee fresh and tasty. Milk Frother Most coffee drinkers know that frothed or whipped milk makes a drink more delicious. It gives your coffee drinks a thicker creamier texture and more sour, light flavor. It also reduces the bitter taste of espresso and gives it a more balanced flavor. If you are a fan of cappuccinos or latte drinks, then you will love having a milk frother in your kitchen. While there are many different types of frothing devices however, they all work in the same way: a small, electric appliance heats milk to make bubbles and foam. The device can be operated by hand or with a hands-free function and you can alter the speed of frothing by turning the use of a dial. The best frothers can produce an adequate amount of foam within 20 or 30 seconds. You can also use them to make hot chocolate, teas like chai or matcha, and other drinks, like cocktails or protein shakes. The most popular frothers are handheld devices which can be used to create foam with handles, or immersion devices that are inserted into a pitcher of liquid milk. They can be used with any type of beverage, however it is recommended to use whole milk as it contains the fats and proteins that aid in the process of helping froth the milk. good coffee beans can also froth non-dairy milks, such as soy or almond however, they will not have the same consistency as cow's milk.