https://www.coffeee.uk/products/de-longhi-combi-coffee-machine-espresso-and-filter-coffee A Guide to Filter Coffee Machines Filter coffee machines can be used to produce an incredibly rich and satisfying cup coffee. With the right tools you can get the best taste and brewing method that is gentle on your machine. The most important thing is to ensure that you have the right equipment and that you follow the guidelines for the ratio of coffee to water grinding, filter positioning, and timing. This can make a massive difference in the quality of your coffee. The water tank The water tank in the filter coffee maker stores the water used to brew coffee. It is crucial to use fresh, filtered water in the tank, so that you can get an optimal flavor of your coffee and the brewing experience. The tank is usually located behind or above the filter basket, and its capacity is different between different models. For instance, a smaller model may only hold water for one cup of coffee at a time, whereas a larger machine can accommodate an entire carafe or pot. The tank is fitted with a heating element which helps to warm the water prior to it is poured onto the grounds. Once the water has been heated, it is dripped over the coffee beans to pick up the coffee oil. The water is then pour into the carafe or the pot to be enjoyed. When making filter coffee, the proportion of ground coffee to water can have a significant effect on the strength and flavor. The recommended ratio is 1:15 for a lighter cup, and 1:18 to make an even stronger, more robust coffee. Using a digital kitchen scale will allow you to accurately determine the amount of coffee and water required in accordance with your preferences. After each brewing session, it's important to flush the coffee maker with vinegar, to avoid mineral build-up, which can lead to problems with the function and taste. It's also a good idea to clean the filter basket and filter holder regularly, as these can collect residue from previous cu