The study, conducted in Swedish healthcare facilities, analysed coffee from at least 14 different office machines, measuring the presence of two natural diterpenes, cafestol and kahweol.

Your coffee consumption at work may be stirring up trouble for your heart. A new study analyzed samples from 14 coffee machines in four different workplaces to determine whether office coffee ...

The numbers are eye-opening. Researchers found cafestol concentrations of 176 milligrams per litre in machine-brewed coffee—nearly 15 times higher than the 12 mg/L found in paper-filtered coffee.