
Multi-Drink vs Single-Category Yield
Output per square metre and per refill visit, compared across machine types.
Site selection gets most of the attention, but the same location can produce very different numbers depending on what the machine sells and when. A single-category machine earns on simplicity; a multi-category machine earns on covering more of the day. Neither wins by default.
These notes look at demand rather than hardware: which categories fill which hours, how menu length affects choice time, and why some sites keep volume after the novelty is gone.

Output per square metre and per refill visit, compared across machine types.

Category demand, buyer profile and time-of-day patterns.

Where unmanned fits against convenience retail and staffed cafés.

How operators run dozens of sites without adding headcount.