For coffee affectionados out there: picking best coffee setup settings is very similar to a physics experiment, and you can totally use the knowledge of experiment design theory there.
Settings:
* Kinds of beans at various levels of roasting available to you.
* Grind size on a grinder with controllable grind size in
steps.
* Ratio of ground coffee weight to water weight used for brewing.
* For filter coffee: preinfusion time, brew time or flow rate
(see V60 brewer).
* For espresso coffee: preinfusion time & pressure, brew time &
pressure or flow rate (see Flair Espresso).
* Water temperature.
* Water mineral composition.
* For milk-based coffee drinks: kinds of milk, milk percentage as ratio of the total drink volume, steaming duration, final milk temperature.
All of these create a huge factorial space of possible configurations, especially if you've go into flow or pressure profiling. If you frame it as an experiment you might isolate some of the variables that make the most impact tailored to your coffee preferences.
