Because you may decide to go with a mainstream brand coffee or stronger premium-brand coffee, you need a machine that quickly adapts. Use the REGULAR setting for a quick basic, automatic drip coffee, or get an upgrade and choose BOLD for more fine grinds, Just remember that the finer the grind, the longer it takes to brew. For stronger coffee, the water passes through at a slower rate, but allows more contact time and better flavor extraction for a better-tasting cup when done brewing.