Dose control
Timed, weighed or manual: choose how grinding stops
A grinder can decide when to stop by counting seconds, measuring the grounds as they arrive, or waiting for you to release a button. These are three different dosing routines. Choose the one that removes work you actually dislike, while leaving you in control of the amount your brewer needs.
A timer repeats time, not a weight
The standard Baratza Sette 270 manual, page 8 describes three programmable time buttons. The saved value controls the duration of grinding; it does not move the grind adjustment. The point is to repeat a duration you have chosen for your routine.
First establish the dose you want, weigh what the timed setting produces, and adjust the time if necessary. Recheck when changing coffee or grind size. The Capresso 570/575 instructions, pages 6–7 explain one reason: the same running time can deliver different amounts at fine and coarse settings. A cup selector should therefore be treated as a dosing aid, not a laboratory measurement of your own cup.
Timed dosing suits someone who keeps a familiar coffee in the hopper and wants a convenient repeated action. It is less appealing if you expect the display alone to guarantee a particular number of grams after every change. Check whether you can pause, top up or save a revised time without a complicated sequence.
Grinding by weight measures the receiving dose
The Sette 270Wi manual, page 7 describes a different system: its presets are in grams, and the machine tares the receiving container before dispensing. That is an actual weight-based workflow, distinct from the standard 270's timed controls.
A built-in scale can remove repeated transfer to a separate scale during dosing. It does not select a suitable recipe or dial in the espresso for you. You still choose the target and prepare the coffee. Check how your particular portafilter or container is supported, what the scale measures, and what happens if you touch or move it during dispensing.
Also separate weighing beans before grinding from weighing grounds during grinding. Both involve grams, but they happen at different places. If you weigh a portion of beans into an ordinary grinder, you have created a measured-input routine; you have not added an automatic grounds-weighing stop.
Manual stopping can be a sensible choice
With manual control, you start and stop the motor yourself. Some machines need a continuous button press; others have a switch or a manual mode. Read the exact instructions rather than assuming that “manual” describes the same action on every grinder.
This can work well if you already weigh individual portions or prefer to control the final top-up. Consider the physical action: do you want to keep a finger on a button, and can you see the receiving cup or scale clearly? A simple interface can be convenient, but it is not hands-free merely because it has few buttons.
Choose the stop rule for your household
For a repeated hopper routine, compare timed and weight-based controls. For frequent changes of beans, look at the grinder's single-dosing instructions as well; automatic weighing does not establish compatibility with that method. For several brewers, check whether saved programs are clearly named or simply numbered, and keep a small note of what each program is for.
In the finder, choose automatic weighing only if that is genuinely a requirement. A timer and an external scale may be perfectly acceptable if you are happy to check the dose yourself. Buy the automation that makes the morning easier, rather than paying for a dosing label whose meaning you have not checked.
Compare the separate Sette 270 and Sette 270Wi reviews before treating their similar names as interchangeable dosing systems.