1. Coffee from workplace brewing machines may contain higher concentrations of cholesterol-raising compounds compared with paper-filtered coffee.
2. Intake of insufficiently filtered coffee may impact plasma cholesterol concentrations and pose a risk to cardiovascular health.
3. Thoroughly filtered coffee is recommended for cardiovascular health.
4. Replacing workplace brewing machine coffee with paper-filtered coffee could result in LDL cholesterol reduction. 
5. The study suggests further investigations into different machine parameters and short-term crossover trials to measure direct effects on plasma lipid levels.

Source: Nutrition, Metabolism & Cardiovascular Diseases