At the present time, there is a high variety of methods of how to prepare coffee; however, in general, they include the four primary stages: roasting, grinding, brewing, and extraction. The first step refers to the transformation of a green coffee bean to a more common look of a brown roasted bean. Consequently, they have to be ground and brewed, and these two primary phases might be performed with various methods and techniques. The last step concerns the extraction of liquid from the brewed mix and the used grounds. Even at the present time, innovative techniques of all the aforementioned steps are being constantly discovered and older methods are improved. You can find more useful information here: https://ivypanda.com/essays/coffee-in-the-historical-and-cul...