CoffeeBox describes coffee as a familiar companion in design and other creative work. The useful distinction is between enjoying a routine, feeling more alert and producing an original idea. They may occur together, but one cup does not establish a causal chain or guarantee a state of flow.
A coffee break can mark a transition between brainstorming, making and reviewing. Write down the next concrete task before returning to work so the break has a clear place in the session. Keep the drink away from electronics and materials, and choose a preparation that fits the available time rather than repeatedly interrupting the work to manage an elaborate brew.
The source's recommendation of a particular light-roasted Ethiopian coffee for enhanced creativity goes beyond what its evidence supports. Roast, origin and process do not supply a reliable creativity prescription, and caffeine cannot replace adequate rest. If coffee interferes with comfort or sleep, treating it as professional fuel can obscure the problem. Choose it for flavor and a manageable routine, while judging creative progress by the work itself rather than the strength or prestige of the drink beside it.
The conversation
A good question can make a better brew.