Yes, coffees from Africa taste different than coffees from Asia and Central America. Culture, tradition, climate, soil, weather, distance from the equator, varieties cultivated and so much more, create large brush stroke differences; but in the overall picture, that only counts, or is only recognized, in the lighter roasts – and is but a limited factor in your search. It certainly is not a leading factor. In general, I would categorize continents as follows:
- Central America: bright + lively + sweet
- South America: bright + lively + sweet
- Asia: spice, cedar
- Africa: heavy, mellow
But with such great land mass, exceptions abound. Thus, origin continent is not an important factor.