Convenience and counter space
An integrated grinder reduces the number of items on the counter and the number of actions before brewing. Beans go into a hopper, which is the storage container above the grinder, and the machine sends the grounds into its brew basket. This suits a predictable routine, such as making the same amount of drip coffee each morning. It also avoids measuring grounds into a separate filter when time is short. That convenience has limits. Many built-in grinders are designed around one brew method and one machine layout, so switching from a full pot to a small pour-over or a cold-brew setup is less convenient. A separate grinder takes up another outlet and some counter area, but it can serve several coffee makers. Before buying, map the space needed for opening lids, removing a water tank, and pulling out the brew basket, not just the machine's footprint.
