The coffee experts camped at a Christian missionary compound and trekked about six miles a day along narrow footpaths.
WSJ: The Indiana Jones of Coffee
That's why some coffee-industry experts favor expanding the varieties of coffee being cultivated and crossbreeding plants to strengthen them.
Many factors are causing coffee's problems, experts say, including climate changes in some coffee-growing areas and population growth in Central America, which has led to pressure to convert coffee plots into housing and shopping malls.
Experts from Brazil say coffee production could be expanded.
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