A recent study by a Swedish research team has found that some coffee machines used in workplaces may produce elevated levels of fatty compounds that can affect blood cholesterol levels, highlighting the importance of coffee preparation methods, particularly for people who drink several cups a day.
اضافة اعلان
According to Science Focus, the study was published in the journal Nutrition, Metabolism and Cardiovascular Diseases and focused on two naturally occurring compounds, cafestol and kahweol. These diterpenes are found in higher concentrations in unfiltered or boiled coffee.
The findings showed that these compounds can raise levels of “bad” LDL cholesterol while slightly lowering “good” HDL cholesterol, potentially increasing the risk of cardiovascular disease.
The researchers tested 14 coffee machines in different workplaces by analyzing samples collected on multiple days and comparing them with other brewing methods, including drip coffee, French press, espresso and boiled coffee.
The results showed that some traditional machines using ground coffee beans and metal filters produced higher amounts of these compounds. Meanwhile, machines that use liquid coffee concentrate recorded lower levels, closer to those found in paper-filtered coffee.
David Eggman, a co-author of the study, emphasized that the effect of these compounds largely depends on the amount of coffee consumed each day, noting that coffee remains a beverage generally associated with health benefits.
To reduce exposure to compounds that may raise cholesterol, the researchers recommended choosing coffee brewed with a paper filter or instant coffee, both of which contain very low levels of these compounds.
