@Jonny Panfilo yeah bro, most important thing about coffee is understanding its origin, its flavors, and its quality. There are different kinds of coffee beans. for me, I group them into Specialty coffee, and Commercial coffee. The most important thing to understand are its flavors, and its origin. The flavors of the coffee are unique to its origin. From Brazil to Ethiopia to Yemeni to El Salvador, different kinds of coffee beans have different origins and the same affects its flavors, its acidity, and its taste. Understanding these basic factors gives you an edge in coffee making. There are different kinds of coffee beans and there are different origins for them. These two tend to confuse a lot of people. There are different ways of making coffee, the most popular two kinds: - Manual brewing e.g.; V60, cold brew, Chemex, etc. - Espresso Based e.g.; Expresso, latte, Flat white, Cortado, Cappuccino, etc. The most important thing is understanding the origin of the coffee. The origin of the coffee determines what you make out of the coffee, because some coffee beans are unique to a particular coffee making pattern. For example, for V60 coffee, it's mostly lightweight coffee beans from Ethiopia but for espresso-based coffee, you can use Brazil coffee beans because they have a heavy body content (heavy body, higher creamer and oily content) something like that. Coffee is just a passion. If you make out time to study it, there's not much to it. Another thing you should know about coffee is that when making coffee, especially espresso-based coffee, you should know how to calibrate the parameters of your machines, from the grinder to the espresso machine. Calibration is very important, in fact, It's the determinant of a good cup of coffee. Calibration is the number one key because it affects everything about the coffee: the taste, the acidity, the sweetness. A slight mistake in the calibration changes everything, so it must be in a perfect calibration before you can get the optimal taste of the coffee. The taste, the notes, the sweetness, the acidity, the sourness and the bitterness. All these factors have to be taken into consideration when calibrating the machine. Either you are making manual brews, like V60s, or you are making espresso-based coffee, like espresso, latte, cappuccino, flat white. Calibration is most important.

@Chetan Mishra Thanks bro