There is a one in five chance that a packet of coffee beans sold in Europe contains residues of pesticides thought to have been erased during roasting, and in some cases include banned sprays that cause cancer, according to new research. There is a “systemic pattern” of pesticides showing up again and again in beans from most major production regions, says Coffee Watch, a US-based non-profit organisation seeking to reform the global coffee industry. Coffee Watch partnered with Pesticide Action...