Coffee: What Is It?
Updated: Aug 6
Since moving to Italy, I have somehow become the coffee correspondent for my family and friends.
I did not apply for this position. There was no examination, and no Italian barista has presented me with an official certificate (yet). But I love coffee, I drink a fair amount of it, and I now live in a country where coffee is woven into daily life.
Apparently, that is enough to give me credentials.
People ask what kind of coffee they should buy, whether espresso has more caffeine than regular coffee, and whether Italians really refuse to drink cappuccino after breakfast.
I am not a scientist, a professional barista, or someone who believes there is only one respectable way to enjoy a beverage. I am simply a devoted coffee drinker who has become increasingly fascinated by what is in my cup.
Living in Italy has made me pay more attention to coffee—not only to how it tastes, but to the role it plays in the day.
Coffee here is often small, strong, and quick. You may drink it while standing at the counter ("al banco") of a neighborhood bar. You order, exchange a few words, drink your espresso, and continue with whatever the day requires.
The entire experience may last only a few minutes, but it still feels like a real pause.
I have grown to love that.
I also still understand the emotional comfort of carrying a large coffee around for half the morning or letting the tumbler sit in your car's cup holder while you run your errands.
Whether your coffee comes in a tiny ceramic cup or a travel mug large enough to have its own gravitational pull, there is far more happening inside it than most of us realize.
For example, coffee is not actually a bean. WHAT??
It is actually a seed from a fruit.
So the drink we affectionately call hot bean juice is really hot roasted fruit-seed water.
This is more accurate, but considerably less appealing.
Coffee Begins as a Fruit
For years, I sat in various coffee shops, working on my laptop and envisioning the day that I could open my own community gathering space. As I would sit in these warmly lit, pleasantly smelling, modern day taverns I never gave much thought into what it was that I was drinking.
I knew coffee grew somewhere warm. I knew there were farms involved. Beyond that, I apparently imagined that coffee beans simply appeared on branches in neat little roasted clusters, ready to be poured into a grinder.
That is not what happens.
Coffee grows on flowering plants belonging to the Coffea genus. These plants produce small fruits commonly known as coffee cherries. As the fruit ripens, it often turns red or deep purple.
Inside each fruit are usually two seeds nestled together.
Those seeds are what we call coffee beans.
The fruit is harvested, and the seeds are removed, processed, dried, roasted, ground, and brewed.
That means every espresso, cappuccino, and ordinary cup of coffee began as a seed tucked inside a colorful fruit growing in a tropical climate.
This helps explain why different coffees can have such different flavors. The variety of the plant, the soil, elevation, climate, ripeness of the fruit, processing method, and roast can all affect what ends up in the cup.
Some coffees taste nutty or chocolatey. Others have floral, citrus, caramel, or berry-like notes.
I will admit that I once assumed people were being slightly dramatic when they described coffee as having “notes of red fruit and jasmine.”
Then I started paying closer attention.
I am still not going to sniff a cup for seven minutes and announce that I detect the emotional memory of a blueberry. But I now appreciate that coffee is an agricultural product with a much more interesting story than “brown beans make morning drink.”
Coffee Is More Than Caffeine
Most of us associate coffee with caffeine, and for good reason.
Caffeine is the famous member of the coffee family. It is loud, energetic, and takes credit for almost everything.
But coffee also contains hundreds of other naturally occurring compounds, including polyphenols and chlorogenic acids. Many of these compounds have antioxidant and anti-inflammatory properties (Harvard T.H. Chan School of Public Health, “Coffee”).
In other words, the coffee seed is not simply a tiny caffeine tablet produced by nature for tired adults.
It is a complex plant food.
A heavily roasted, ground, socially beloved plant food—but a plant food nonetheless.
Coffee is also an important source of antioxidants in many people’s diets. This does not necessarily mean it is more nutritious than fruits and vegetables. It often means that people consume coffee more consistently than they consume antioxidant-rich foods (Harvard T.H. Chan School of Public Health, “Coffee”).
So no, a second espresso does not count as eating your vegetables.
It Helps Us Feel Awake
Coffee’s most obvious benefit is the one most of us have already tested personally.
It helps with alertness.
Caffeine works mainly by blocking receptors for adenosine, a chemical messenger that builds up in the brain and contributes to feelings of sleepiness. By temporarily interfering with that signal, caffeine can help people feel more alert, energetic, and able to concentrate (Harvard T.H. Chan School of Public Health, “Coffee”).
Or, in less scientific terms, caffeine asks tiredness to step outside for a little while.
This can be helpful when you need to work, study, drive, exercise, write, care for children, or remember why you walked into the kitchen.
Coffee does not replace sleep.
It cannot fully repair a body running on four hours of rest, misplaced optimism, and half of your son's leftover breakfast.
But it may help with the transition from:
“I have opened my eyes.”
to:
“I am prepared to participate in the day.”
I consider that a meaningful contribution.
It May Give Exercise a Little Assistance
Caffeine may also improve certain areas of physical performance, including endurance, reaction time, alertness, and the perception of effort.
This is one reason caffeine appears in so many pre-workout products. It is also why some people drink a cup of coffee before running, cycling, lifting weights, or trying to convince themselves to enter the gym after sitting in the parking lot for ten minutes.
Coffee does not do the exercise for you.
But caffeine may make exertion feel slightly more manageable for some people.
The effect varies. A daily coffee drinker may respond differently from someone who rarely has caffeine. Genetics, tolerance, body size, timing, and the amount consumed can all make a difference.
There is also a point at which more caffeine stops feeling helpful.
There is an amount that makes you feel alert and ready to move.
There is another amount that makes you clean the entire kitchen with unusual intensity while remembering every embarrassing thing you have said since 2009.
It is helpful to know which amount is which.
Coffee’s Health Reputation Has Changed
Coffee has not always had the best reputation.
For a long time, many people assumed that something so enjoyable and caffeinated must secretly be bad for us.
But research over the past several decades has produced a more encouraging picture.
Moderate coffee consumption has been associated with a lower risk of several health conditions, including type 2 diabetes, cardiovascular disease, certain liver diseases, Parkinson’s disease, and premature death from several causes (Poole et al., 2017).
One large umbrella review examined more than 200 previous analyses of coffee and health. Researchers found that coffee consumption was more often associated with benefit than harm, with some of the strongest associations appearing around three to four cups per day (Poole et al., 2017).
That does not mean everyone needs to begin drinking four cups of coffee.
It also helps to remember that a “cup” in health research may be much smaller than the cup many of us picture.
An eight-ounce serving is not the same as a coffee-shop drink served in a container that could also be used to water a medium-sized houseplant.
These studies also show associations. They do not prove that coffee alone prevents disease.
Coffee drinkers may differ from non-coffee drinkers in other ways. Researchers try to account for factors such as diet, exercise, smoking, age, and alcohol use, but observational research cannot control for everything.
Coffee is not a medical treatment or a guarantee.
The reassuring takeaway is simply that moderate coffee consumption appears to fit comfortably within a healthy lifestyle for most people.
Your morning coffee does not need to be treated like a guilty secret.
The Liver Seems Especially Fond of Coffee
One of the most consistent areas of coffee research involves liver health.
Regular coffee consumption has been associated with lower rates of liver fibrosis, cirrhosis, chronic liver disease, and liver cancer (Wadhawan and Anand, 2016).
Researchers are still exploring the exact reasons. Coffee contains many compounds that may influence inflammation, liver enzymes, and the development of scar tissue.
This does not mean that an espresso erases every other choice a person makes.
Coffee is not a tiny cup of consequences cancellation.
But the connection between coffee and better liver outcomes has appeared consistently enough to receive serious scientific attention.
Apparently, the liver may also be a fan of hot bean juice.
Coffee and the Heart
Coffee’s relationship with heart health is more complicated than many people once believed.
Because caffeine can temporarily increase heart rate or blood pressure in some people, coffee was often assumed to be harmful to the cardiovascular system.
However, moderate coffee consumption has been associated in many studies with a lower risk of cardiovascular disease and stroke rather than a higher one (Poole et al., 2017).
This does not mean coffee affects everyone identically.
People with certain heart conditions, blood-pressure concerns, anxiety, medication interactions, or strong caffeine sensitivity may need to limit caffeine or discuss it with a healthcare professional.
Some people drink an espresso and feel pleasantly awake.
Others drink the same espresso and can suddenly hear colors.
Personal tolerance matters.
It May Support Metabolic Health
Coffee consumption has also been associated with a lower risk of developing type 2 diabetes (Harvard T.H. Chan School of Public Health, “Coffee”).
Researchers are still studying why this association exists. Coffee contains polyphenols, chlorogenic acids, magnesium, and other substances that may influence inflammation, glucose metabolism, and insulin sensitivity.
Interestingly, some favorable associations have also been found with decaffeinated coffee. That suggests caffeine is not the only substance responsible for coffee’s possible benefits (Harvard T.H. Chan School of Public Health, “Coffee”).
This does not mean that coffee can cancel a consistently unhealthy diet.
It means that plain or lightly sweetened coffee can be part of a balanced diet without automatically being labeled an unhealthy habit.
Decaf Is Still Coffee
I know that some devoted coffee drinkers consider decaf an act of betrayal.
I do not.
Decaffeinated coffee still comes from coffee seeds. It still contains many of the polyphenols and plant compounds found in regular coffee. It has also been associated with some of the same favorable health outcomes, despite containing much less caffeine (Harvard T.H. Chan School of Public Health, “Coffee”).
Decaf can be a good option for people who love the taste and ritual of coffee but do not enjoy anxiety, disrupted sleep, heart palpitations, or suddenly becoming aware of every sound in the building.
It is also useful in the evening, when you want a warm cup of coffee but do not want to lie awake at 2:00 in the morning redesigning your life.
Decaf is coffee wearing comfortable clothes.
It may not be heading anywhere urgent, but it still belongs at the gathering.
What We Put in Coffee Matters Too
Plain brewed coffee is naturally very low in calories.
Coffee with milk can also fit easily into a balanced diet.
A coffee containing several pumps of flavored syrup, whipped cream, sweetened sauce, cookie pieces, and a small pastry balanced on the lid is a different experience.
It may be delicious.
It may bring genuine happiness.
But at some point, it has entered dessert territory.
There is no shame in dessert. I enjoy dessert. "Dessert coffee", as it's referred to by our Italian friends, is a different thing than what I'm talking about in this article.
One thing I appreciate about Italian coffee culture is that the coffee usually remains recognizable.
An espresso is small and concentrated. A macchiato ("marked" or "stained") has a little milk added. A cappuccino combines espresso with steamed milk and foam without requiring its own zip code.
The coffee remains the main character.
That does not make other coffee traditions wrong. It has simply helped me appreciate the flavor of coffee itself in a new way.
A Few Gentle Italian Coffee Observations
Living in Italy has taught me several things about coffee, although I hesitate to call them rules.
For one thing, ordering “a coffee”—un caffè—usually means ordering an espresso.
It took me a little time to adjust to how small the cup was.
I now understand that the small size is part of the appeal. An espresso is not intended to occupy your entire morning. It provides a concentrated moment and then allows you to return to your life.
Cappuccino is generally treated as a morning drink in Italy. Many Italians prefer not to drink a large amount of milk after a meal, so cappuccino is less common later in the day.
But despite all the dramatic internet warnings about this custom, no alarm sounds if someone orders one in the afternoon.
The barista will almost certainly make it.
Italy will continue functioning.
You may enjoy your coffee.
I have also learned that coffee here is often social without becoming an event that requires advance planning. Someone may ask whether you want to get a coffee, and the entire outing may last fifteen minutes.
I love a long visit in a coffee shop, but I also appreciate this smaller kind of hospitality.
A person does not always need two open hours to connect with someone.
Sometimes there is time for one espresso and a real conversation.
Coffee Gives Us a Reason to Pause
The scientific benefits of coffee are interesting.
The caffeine is useful.
The plant compounds are a welcome surprise.
But I do not think those facts fully explain why coffee has become such a beloved ritual.
Coffee marks moments.
It begins the morning.
It divides one task from the next.
It warms your hands on a cold day.
It sits beside books, notebooks, work, prayer, and conversation.
It offers a reason to pause when no other reason seems available.
Coffee also gives us an easy invitation.
“Would you like to sit with me and discuss our lives, fears, hopes, relationships, disappointments, beliefs, and plans for the future?” feels a little intense.
“Would you like to get coffee?” accomplishes much the same thing without alarming anyone.
Coffee creates a comfortable space between people.
It gives us something to hold during serious conversations. It fills the brief silences while we decide what to say next. It makes meetings feel friendlier and ordinary afternoons feel a little more intentional.
A cup beside a book or a window changes the atmosphere.
These are no longer simply ten unused minutes.
This is coffee time.
Coffee Still Has Limits
Coffee may have benefits, but it is not a replacement.
The U.S. Food and Drug Administration states that, for most healthy adults, up to 400 milligrams of caffeine per day is an amount not generally associated with negative effects.
Depending on the strength and serving size, that may equal approximately two or three 12-ounce cups of brewed coffee (U.S. Food and Drug Administration, 2024).
Caffeine content can vary considerably, however.
The mug you call “one cup” may be making a very generous interpretation of the word.
Too much caffeine can cause anxiety, shakiness, digestive discomfort, headaches, a racing heart, and difficulty sleeping.
Coffee consumed later in the day may also disrupt sleep, even when a person is still able to fall asleep.
Pregnant women, people with certain medical conditions, and those taking medications that interact with caffeine may need lower limits or individualized advice from a healthcare professional.
The goal is not to consume the maximum amount of coffee officially considered tolerable.
The goal is to enjoy your coffee without feeling as though your skeleton is trying to leave your body.
What Italy Has Really Taught Me About Coffee
Living in Italy has not made me a coffee authority.
It has made me more attentive.
I pay more attention to the cup, the aroma, and the pause.
I notice the difference between drinking coffee because I desperately want caffeine and drinking coffee because I want to enjoy a moment.
Italian coffee culture has reminded me that more is not always better.
A drink does not need to be enormous to be satisfying.
A break does not need to last all afternoon to be meaningful.
Rest does not always need to be earned through total exhaustion.
Sometimes you can walk into a bar, order a coffee, stand at the counter for five minutes, and allow the day to become manageable again.
I still enjoy coffee in many forms.
I enjoy the tiny Italian espresso.
I enjoy a slow cappuccino.
I enjoy making coffee at home and carrying it around in a mug while repeatedly forgetting where I put it.
I am not interested in telling anyone that there is only one correct way to drink coffee.
I am interested in appreciating it.
And perhaps in giving my friends and family just enough coffee information that they continue asking me questions.
I have accepted my position.
A Final Word for Hot Bean Juice
Coffee begins as a fruit.
Inside that fruit is a seed.
The seed is removed, processed, dried, roasted, ground, and brewed.
It contains caffeine, polyphenols, chlorogenic acids, and hundreds of other naturally occurring compounds.
Coffee may improve alertness and certain areas of physical performance. Moderate consumption has been associated with a lower risk of several chronic conditions, particularly type 2 diabetes and liver disease (Poole et al., 2017; Harvard T.H. Chan School of Public Health, “Coffee”).
It is not a miracle drink.
It cannot replace sleep, water, movement, nutritious food, meaningful relationships, or proper medical care.
But coffee is also more than a collection of possible health benefits.
It is comfort.
It is hospitality.
It is ritual.
It is a pause during a busy day.
It is the drink we place between two people when we hope the conversation will continue.
So yes, coffee is technically hot water poured over the roasted seeds of a fruit.
But “Would you like to come over for an antioxidant-rich tropical fruit-seed infusion?” is unlikely to become a popular invitation.
We will continue calling it coffee.
And in our house, with great affection and only moderate botanical accuracy, we will continue calling it hot bean juice.
Long may it pour.
Sources
Harvard T.H. Chan School of Public Health. “Coffee.” The Nutrition Source.
Poole, Robin, et al. “Coffee Consumption and Health: Umbrella Review of Meta-Analyses of Multiple Health Outcomes.” BMJ, 2017.
U.S. Food and Drug Administration. “Spilling the Beans: How Much Caffeine Is Too Much?” Updated 2024.
Wadhawan, Manav, and Anil C. Anand. “Coffee and Liver Disease.” Journal of Clinical and Experimental Hepatology, 2016.
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