What Is Cafestol in Specialty Coffee?

If you’ve ever wondered why some studies link coffee to higher cholesterol but others don’t, the answer may be sitting in your filter—or lack of one. Not all coffee affects your blood lipids equally, and the difference often comes down to one often-overlooked compound.

Cafestol is a diterpene molecule found in coffee beans. It’s virtually absent in filtered coffee but present at significant levels in unfiltered brews—up to 6–12 milligrams per cup. That’s the key reason certain coffee styles can impact serum cholesterol, while others don’t.

What Is Cafestol, Exactly?

Cafestol is a diterpene, a type of organic compound that is fat-soluble and naturally occurs in coffee beans. It is part of a group that also includes kahweol, another diterpene with a very similar structure—kahweol has just one extra double bond. Both substances are extracted during brewing but are mostly captured by paper filters, which is why they’re barely present in filtered coffee.

Where Does Cafestol Come From?

Cafestol and kahweol are found in the lipid fraction of coffee beans. They can be isolated by dissolving ground coffee in oil. These compounds are not evenly distributed among coffee species. Arabica beans contain both cafestol and kahweol, with the two compounds making up around 1% of the coffee bean’s total mass. In contrast, Robusta beans contain roughly half the amount of cafestol and almost no kahweol at all. The exact concentration can vary depending on the coffee variety and growing conditions.

How Does Cafestol Affect Your Body?

In the 1980s, researchers discovered that drinking unfiltered coffee could raise serum cholesterol levels—and they traced this effect to cafestol and kahweol. Of the two, cafestol is more potent: daily intake of around 60 mg of cafestol alone or 64 mg (when combined with kahweol) can significantly increase cholesterol. A mixture of 60 mg cafestol and 51 mg kahweol raises cholesterol only slightly more than cafestol on its own. Because kahweol is harder to isolate and less stable, its standalone effects on cholesterol remain unclear.

Which Coffee Brewing Methods Contain the Most Cafestol?

The way you brew coffee determines how much cafestol ends up in your cup. Cafestol and kahweol dissolve in hot water but are largely trapped by paper filters. That’s why traditional European-style boiled coffee, Turkish coffee, and French press coffee contain high levels—around 6–12 mg per cup. In contrast, filtered coffee and instant coffee contain minimal amounts, typically just 0.2–0.6 mg per cup. Even espresso, which is unfiltered, has a relatively moderate cafestol content of about 4 mg per cup, partly because most people drink smaller servings compared to other methods. So while espresso does retain some cafestol, it contributes less overall unless consumed in large quantities.

Frequently Asked Questions

Does filtered coffee contain cafestol?

No. Paper filters trap cafestol during brewing, so filtered coffee contains only trace amounts—typically between 0.2 and 0.6 milligrams per cup. That’s not enough to affect serum cholesterol levels.

Is cafestol only found in Arabic coffee?

No. Cafestol is found in all coffee types, but Arabica beans contain both cafestol and kahweol, which together make up about 1% of the bean’s mass. Robusta beans have about half the cafestol and almost no kahweol.

Why does Turkish coffee have more cafestol?

Turkish coffee is unfiltered and boiled, which allows cafestol to fully dissolve into the brew. Since there’s no filter to capture it, levels can reach 6–12 mg per cup—much higher than in filtered coffee.

Does espresso have a lot of cafestol?

Espresso is unfiltered, so it does contain cafestol—about 4 mg per cup. But because most people drink smaller servings of espresso compared to other brews, it’s a minor source of cafestol in the diet overall.

Is cafestol bad for your health?

Cafestol can raise serum cholesterol levels if consumed in large amounts, especially in unfiltered coffee. Daily intake of around 60 mg has been shown to significantly affect cholesterol. However, moderate consumption of filtered coffee poses little to no risk.

Recommended FrontStreet Arabica Coffees

For coffee lovers curious about specialty beans and brewing methods, try FrontStreet’s Ethiopia Yirgacheffe from the Gedeb Cooperative—known for bright citrus, floral jasmine, and grape acidity. The Jamaica Blue Mountain No.1 (Typica) offers a balanced, creamy profile with notes of almond and chocolate. Or explore the Brazil Queen Manor Yellow Bourbon, with caramelized peanut, sweet cane, and smooth body. All three showcase the diversity of arabica and pair well with different brew methods. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.