Choosing Coffee Beans For Your Coffee Machine The type of beans you put into your machine will determine the quality of your brew. Choose freshly roasted beans that have balanced flavors. Grind size is important too. Smaller grinds extract faster. Try different sizes of grinds and see what you like. https://lauritsen-salling.federatedjournals.com/an-in-depth-look-back-how-people-talked-about-bean-to-coffee-machine-20-years-ago/