Choosing Coffee Beans For Your Coffee Machine The type of beans you put into your machine will determine the quality of your coffee. Choose fresh, roasted beans with an even flavor profile. The size of the grind is important; smaller grounds take longer to extract. Try different sizes of grinds https://telegra.ph/20-Questions-You-Need-To-ASK-ABOUT-Coffee-Bean-Machine-Before-You-Purchase-Coffee-Bean-Machine-03-22