Why French Press Coffee Is Bad for You: 7 Reasons to Avoid It

You love the rich flavor of French press coffee, but you may not love what it’s doing to your body. Unfiltered brewing locks in oils and compounds that hike up your cholesterol, irritate your gut, and even strain your heart over time. While that bold taste feels indulgent, the concealed downsides stack up—from digestive discomfort to long-term health risks. Should you be sipping it daily, here’s what’s really brewing under the surface.

Higher Levels of Cafestol and Kahweol Increase Cholesterol

Should you love French press coffee, you might want to rethink how much you drink—because those rich, bold flavors come with a catch.

French press coffee contains cafestol and kahweol, compounds that elevate LDL cholesterol and triglycerides, both linked to cardiovascular disease. Unlike filtered coffee, the metal mesh in a French press lets these oils slip into your cup, raising cholesterol levels over time.

Studies show drinking five cups daily can spike LDL by 7 mg/dL, and some people with genetic risks see even bigger jumps. While you don’t need to ditch it completely, moderation matters. Stick to four cups or fewer to enjoy your brew without sabotaging your heart.

Unfiltered coffee’s risks aren’t instant, but consistency adds up, so keep an eye on your intake.

Unfiltered Coffee Raises LDL Cholesterol and Triglycerides

You may not realize how much unfiltered French press coffee impacts your cholesterol.

Its high cafestol content directly raises your LDL levels and boosts triglycerides, putting your heart health at risk.

Just five cups a day could spike your LDL by 7 mg/dL—enough to tip the scales should you already be borderline.

Higher Cafestol Levels

French press coffee packs far more cafestol than filtered varieties—about 300 times more.

This oily compound, a type of diterpene, lingers in unfiltered coffee because the metal mesh doesn’t trap it like paper filters do. Whenever you drink French press coffee regularly, cafestol tricks your liver into producing more LDL cholesterol, the “bad” kind that clogs arteries.

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It also hikes triglycerides, another fat in your blood linked to cardiovascular disease. Just five cups a day can raise LDL by 7 mg/dL and triglycerides by 11 mg/dL—enough to nudge your health risks higher.

In case you love your French press, consider balancing it with filtered coffee to keep blood cholesterol levels in check. Your heart will thank you.

Increased LDL Cholesterol

Though the French press delivers rich flavor, its unfiltered brew comes with a downside: it can drive up your LDL cholesterol. The culprit is cafestol, a compound in unfiltered coffee that boosts cholesterol levels. Studies show drinking five cups of French press coffee daily can raise LDL by 7 mg/dL—enough to impact heart health over time. Should you be genetically prone to high cholesterol, the effect worsens.

Coffee TypeEffect on LDL Cholesterol
French PressRaises LDL markedly
Filtered CoffeeMinimal impact

Switching to filtered coffee cuts cafestol exposure, protecting your cholesterol levels. Limit unfiltered coffee to four cups daily to reduce health risks. Your heart will thank you.

Triglyceride Impact Risks

While that rich, bold French press coffee could taste amazing, it’s not just LDL cholesterol you need to worry about—it can also send your triglycerides climbing.

Unfiltered brewing methods like the French press trap cafestol and kahweol, compounds that hike up both LDL and triglycerides. Studies show drinking five cups daily might raise triglycerides by 11 mg/dL, worsening your cholesterol profile.

These oils aren’t just bad for your heart; they mess with your cardiovascular health long-term.

Even though caffeine perks you up, the trade-off isn’t worth it. Filtered coffee cuts these risks, but French press keeps them in every sip.

Should you be watching your numbers, switching to paper-filtered coffee could save you from unnecessary health risks. Your heart will thank you.

You may not realize it, but drinking French press coffee regularly can bump up your LDL cholesterol, which clogs your arteries over time.

Studies show it can raise your “bad” cholesterol by 6-8% in just a month, putting you at higher risk for heart disease.

Should you already be watching your heart health, this could be one habit worth reconsidering.

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Higher LDL Cholesterol

Should you love French press coffee, it’s worth comprehending that its rich flavor comes with a downside—higher LDL cholesterol.

Unlike filtered coffee, French press coffee is unfiltered, meaning it retains cafestol, a compound that raises cholesterol levels.

Studies show drinking five cups daily can spike LDL by 7 mg/dL and triglycerides by 11 mg/dL, nudging you toward health risks like atherosclerosis.

Over time, elevated LDL cholesterol stiffens arteries, increasing the chance of heart attacks.

While you may savor the bold taste, those extra milligrams add up, quietly impacting your cardiovascular health.

Switching to paper-filtered methods cuts cafestol by 99%, helping you enjoy coffee without the cholesterol hike.

Small changes matter—your heart will thank you.

Increased Heart Disease Risk

Because French press coffee skips the paper filter, those rich flavors come with a concealed cost—your heart health could take a hit.

Unfiltered coffee like French press contains cafestol and kahweol, compounds that raise LDL cholesterol, a major player in cardiovascular disease. Studies show drinking five cups daily can spike LDL by 7 mg/dL, boosting your increased heart disease risk over time.

Should you be genetically prone to high cholesterol, the effect worsens. Switching to filtered coffee cuts these health risks, as paper traps harmful oils.

While moderation helps, regular unfiltered coffee drinkers face a 6-8% higher LDL climb, linking directly to heart trouble. Your love for French press shouldn’t outweigh the stakes—your heart deserves better.

Greater Exposure to Harmful Oxidative Compounds

While French press coffee delivers a rich, full-bodied flavor, its unfiltered brewing process means more than just taste ends up in your cup.

Without a paper filter, harmful oxidative compounds like cafestol and kahweol—diterpenes found in coffee oils—slip right into your brew. These compounds can raise your cholesterol levels, increasing the risk of cardiovascular problems over time.

Unfiltered coffee also exposes one to higher levels of oxidative stress, which damages cells and contributes to long-term health risks. Even acrylamide, a byproduct of roasting, lingers in your cup, adding to the potential harm.

Should you love French press but worry about these effects, consider balancing it with filtered methods to reduce your exposure. Your heart and body will thank you.

Higher Acrylamide Content Compared to Filtered Coffee

French press coffee doesn’t just let more cholesterol-raising compounds slip into your cup—it also packs a higher dose of acrylamide. This chemical forms when coffee beans roast, and your brewing method matters. Unlike filtered coffee, which traps acrylamide in the paper, French press lets it seep into your drink.

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The longer coffee grounds steep in hot water, the more acrylamide content builds up. Studies link higher concentrations of acrylamide to cancer risk in animals, making it a health concern for humans too. Regular exposure adds up, especially in case you drink French press daily.

Filtration cuts acrylamide levels considerably, but with French press, you’re getting more of it. In case you’re worried about long-term effects, switching to filtered coffee could be smarter.

May Aggravate Digestive Issues Due to Oils and Sediments

Should you have ever felt a bit off after drinking French press coffee, those lingering oils and fine sediments could be the culprit. The lack of a paper filter means more oils and impurities slip into your cup, including diterpenes like cafestol and kahweol. These compounds can ramp up stomach acid, worsening digestive issues like acid reflux or general gastrointestinal distress.

The sediment at the bottom? It’s not just grit—it can irritate a sensitive gut, making discomfort stick around longer. In case you’re prone to digestive trouble, unfiltered coffee could be harder on your system than you’d expect.

Even small amounts add up, so in the event that your stomach rebels after a cup, the oils and sediment could be why. Switching to filtered coffee could ease the discomfort.

Associated With Higher Mortality Rates in Long-Term Studies

Should you have been sipping French press coffee for years, those rich, unfiltered cups could come with a concealed cost.

Long-term studies link press coffee to higher mortality rates, partly because it raises LDL cholesterol levels. Unlike filtered coffee, French press coffee lets oily compounds slip through, which can clog arteries over time, leading to atherosclerosis. This buildup increases your risk of cardiovascular disease, a major contributor to health complications.

Research shows unfiltered coffee drinkers face steeper cholesterol levels and a higher chance of heart issues. While the bold flavor tempts you, your health management could pay the price.

Switching to filtered methods could lower these risks, keeping your heart healthier longer. It’s not just about taste—it’s about longevity.

Conclusion

So, is French press coffee worth the risk? As they say, “better safe than sorry.” The extra flavor could tempt you, but the cholesterol spikes, digestive woes, and long-term health risks aren’t a fair trade. Switching to filtered coffee keeps the perks without the pitfalls. Your heart and gut will thank you—because feeling good today shouldn’t cost you tomorrow. Small changes can brew big benefits. Choose wisely!

Allfit Well Health Team
Allfit Well Health Team

The Allfit Well Health Team is a group of expert physicians specializing in Endocrinology, Pulmonologist, Hematology, and General Care. They provide reliable, evidence-based health information to help readers understand, manage, and prevent medical conditions.