In addition to these good ingredients, harmful substances can also be produced when the beans are roasted. This is why making coffee is so crucial.
Unfiltered versions, such as French press coffee or Turkish coffee, contain so-called diterpenes, which increase cholesterol levels.
The much praised espresso also contains fewer, but still moderately many, harmful substances because it is gently brewed. Here, too, a certain amount of coffee grounds remains in the cup, which is often drunk.
The bad LDL cholesterol increases the risk of cardiovascular disease in coffees other than filter coffee by a full 11 percent (when consuming six cups per day), the study says.
Unfiltered coffee is therefore particularly dangerous for people with lipid metabolism disorders.