A supply crunch of robusta coffee beans in Vietnam, the world’s leading producer, has driven up prices by 50% in London this year. Weaker harvests due to El Niño-induced drought have led to a shortage of beans, which is impacting exporters and pushing up costs for consumers. Some experts predict prices could reach $5.89 per kilogram, translating to higher coffee shop prices. As Vietnam struggles to meet demand, coffee companies are forced to source beans from other countries to maintain supply.