Some Parts of Africa Are Struggling to Produce By Nicholas Bariyo The Wall Street Journal June 1, 2014 KAMPALA, Uganda—At 7:30 one recent morning, Patra Akello, a dentist, joined some workmates for a ritual once rare here: a cup of coffee. "It's my favorite daily routine," says Dr. Akello, 28 years old. Ugandans are tea drinkers, though their country exports more coffee than any other in Africa. But times and tastes are changing, and an increasing population of Africans who drink coffee, rather than grow it, is rumbling the global market. Dr. Akello gets her caffeine fix at a shop operated by Good African Coffee (Ltd.), a Ugandan roaster and processor. Five years ago, Good African became the first company here to market locally roasted coffee. Since then, dozens of other swanky coffee shops and restaurants have sprung up across Uganda. Local consumption is still small, but the growing demand from local drinkers adds to an a...