Unfiltered Coffee & Cholesterol: How French Press and Espresso Affect Your Heart Health

 Here’s what happened. A while ago, while I was scrolling through short-form videos, I came across a piece of medical-related news about coffee. It said that drinking coffee made without a filtration step—such as coffee brewed with a moka pot or a French press—may raise cholesterol levels in the body, thereby increasing the risk of cardiovascular and cerebrovascular diseases.

I don’t claim any authority when it comes to medical science, but this still made me curious enough to dig a little deeper and see what was really going on. So today, I’d like to talk about this topic with you.

The reason behind this has to do with two natural oils found in coffee: cafestol and kahweol. Cafestol is a diterpene compound extracted from coffee beans and is structurally similar to kahweol. Research suggests that cafestol may increase cholesterol levels. Kahweol, also a natural diterpene compound from coffee beans, has been shown to have anti-inflammatory, anti-angiogenic, and anti-cancer properties.

Both of these compounds are fat-soluble, meaning they can enter the coffee liquid during brewing. Unfiltered coffee—such as French press coffee, moka pot coffee, and espresso, all of which are commonly brewed without paper filters—tends to contain higher concentrations of cafestol and kahweol. With immersion brewing methods like the French press, hot water remains in contact with the coffee grounds for a longer period of time, and without paper filtration, these oily compounds are able to pass freely into the cup.

In contrast, paper-filtered coffee, such as pour-over coffee, contains almost none of these substances. That’s because paper filters effectively trap and absorb these oils, preventing them from passing through into the final brew.

So once we understand how these compounds exist in coffee and how they relate to different brewing methods, the next question is: how exactly do they raise cholesterol levels in the body?

One key reason is that they interfere with receptors in the liver that are responsible for regulating cholesterol levels. This reduces the liver’s ability to remove low-density lipoprotein (LDL) cholesterol—often referred to as “bad cholesterol”—from the bloodstream. At the same time, these compounds may stimulate the liver to produce more cholesterol on its own, while also reducing the excretion of bile acids (which are made from cholesterol). As a result, more cholesterol is reabsorbed back into the bloodstream.

Ultimately, this leads to higher levels of total cholesterol and LDL cholesterol. Some studies suggest that long-term, heavy consumption of unfiltered coffee can raise LDL cholesterol levels by approximately 3%–10%, depending on the amount consumed and the type of coffee.

Medical research indicates that for healthy individuals, drinking one to two cups of espresso or milk-based espresso drinks per day has a relatively limited impact. However, the cumulative effect of long-term, heavy consumption of French press coffee should not be overlooked—especially for people who already have high cholesterol or cardiovascular risk. In these cases, the cholesterol-raising effect of cafestol can be quite significant.

Therefore, if you are particularly concerned about your cholesterol levels, it’s best to choose paper-filtered coffee as your daily option. Brewing methods such as French press, Turkish coffee, and boiled coffee tend to contain the highest levels of these coffee oils.

For healthy individuals with normal cholesterol levels, no cardiovascular disease risk, and moderate coffee consumption, the impact is usually minimal. There’s no need to completely give up your favorite type of coffee—the key lies in moderation and taking your personal health condition into account. For those who have already been diagnosed with hypercholesterolemia or have cardiovascular risk factors, in addition to controlling saturated and trans fat intake, switching from unfiltered coffee to filtered coffee can be a simple and effective supportive measure.

By this logic, it seems we’ve gained yet another reason to accept why American-style coffee filters out those oils. Well, I guess I really can’t stay away from this topic lately. No need to panic—just drink responsibly and within your limits. Wishing everyone many happy coffee moments ☕️

Coffee and Health: How to Drink the Right Way for Energy, Longevity, and Balance

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For years, coffee has carried a mix of praise and suspicion. Some see it as a magic morning potion — others, as a guilty pleasure that might harm the stomach or heart. But new scientific research is flipping that old narrative. Far from being a health hazard, coffee can actually protect your body and even extend your life — if you drink it the right way. From antioxidant power to liver protection, this everyday brew offers more benefits than most people realize. Here’s how to make your daily cup a long-term ally for your health and energy.

“Is coffee actually good or bad for your health?”
That’s a question many of us have wrestled with. Some say it’s energizing; others worry it’s harsh on the stomach. But according to a CNN report citing a large-scale study, coffee just got a clean bill of health — it not only doesn’t harm you, but can actually improve your well-being. And the benefits seem especially strong for middle-aged and older adults.

The study tracked nearly 20,000 participants and found something remarkable: compared to people who rarely or never drink coffee, those who drink at least four cups a day had a 64% lower risk of early death. Even more interesting, the health benefits of coffee appear to grow with age — meaning that regular coffee drinkers may enjoy better long-term stability in their overall health.

And this isn’t an isolated finding. Another major long-term study showed that people who consistently drink coffee tend to live longer than those who don’t. So that old worry — “too much coffee makes your heart race” — might not hold up. When consumed properly, coffee can actually support your health.

Why Coffee Can Be Good for You

The secret lies in what’s inside the cup.

First, antioxidants. According to Joe DeRupo, spokesperson for the National Coffee Association, coffee beans are naturally rich in antioxidants, and even more are created during the roasting process. These compounds help reduce oxidative damage in the body — a key factor in aging and many chronic diseases.

Second, organ protection. Dr. V. Wendy Setiawan, Associate Professor of Preventive Medicine at USC’s Keck School of Medicine, notes that certain coffee compounds can improve liver function and help suppress chronic inflammation — which is often a hidden driver of conditions like type 2 diabetes, liver disease, and even some cancers.

As a result, numerous studies now confirm that regular coffee drinkers face a lower risk of multiple diseases. Coffee can reduce the chance of developing type 2 diabetes, help protect the liver from fatty liver and cirrhosis, and even lower risks of colorectal and skin cancers. Some evidence also suggests that coffee may help protect against Alzheimer’s disease by slowing cognitive decline.

When to Cut Back (or Skip It Altogether)

Before you rush to chug another cup, note that coffee isn’t for everyone. These three groups need to limit or avoid it:

1. Pregnant women should keep caffeine intake below 200 mg per day (about 1–2 cups of regular brewed coffee), as excessive caffeine may affect fetal development.

2. Heart disease patients, especially those with arrhythmia (like atrial fibrillation) or hypertension, should be cautious. Dr. Vince Bufalino of the American Heart Association advises strict control to prevent caffeine from overstimulating the heart.

3. People with acid reflux or stomach ulcers should avoid drinking coffee on an empty stomach or brewing it too strong. Caffeine can trigger acid secretion, leading to heartburn or stomach pain. If you must have it, drink it after meals or with milk to ease irritation.

   
   
   

The 4 Rules for Drinking Coffee the Healthy Way

If you want coffee to help your health, not hurt it, these four rules make all the difference:

1. Add low-fat milk, not cream.
   One tablespoon of low-fat milk has just 6 calories and adds 19 mg of calcium — a win-win for reducing calories and counteracting the slight calcium loss that coffee can cause. By comparison, one tablespoon of cream has about 50 calories.

2. Skip the sugar.
   One teaspoon of sugar has 16 calories. It may not sound like much, but if you drink three cups a day with two teaspoons each, that’s 96 extra calories daily — and over time, that can lead to weight gain and blood sugar spikes.

3. If you have high cholesterol, go for filtered coffee.
   Unfiltered types (like French press or Turkish coffee) contain compounds called cafestol and kahweol, which can raise cholesterol levels in some people. Using a paper filter removes most of these, making your coffee safer.

4. Avoid caffeine within six hours of bedtime.
   Caffeine takes time to metabolize. Even “decaf” can disrupt sleep if consumed too late. Aim to cut off coffee at least 6 hours before bed — ideally 3 hours even for low-caffeine options.

The Bottom Line

Coffee isn’t a villain — it’s a health ally, as long as you drink it right. The key is balance: drink the right amount (1–4 cups per day, about 200–250 ml each), know your limits, and choose preparation methods that suit your health needs. You don’t need expensive beans or fancy gear — a regular filtered brew can deliver the same benefits.

So next time you raise your mug, skip the guilt. With the right habits, you can savor both the flavor and the health perks of coffee.

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At the end of the day, coffee is more than just a drink — it’s a daily ritual that connects comfort, focus, and health. The key lies not in how much you drink, but how you drink it. Choose balance over excess, awareness over habit. Your morning brew can be both a source of joy and a quiet act of self-care. So the next time you take that first sip, pause for a moment — appreciate the aroma, the warmth, and the knowledge that you’re doing something good for your body.

☕ What’s your favorite way to enjoy coffee — black, with milk, or something creative? Share your thoughts in the comments below!