What Is A Latte? The Most Popular Coffee Drink In America

Bacon and eggs.
Steak and red wine.
Apple pie and ice cream.

Some foods just go together.

In fact, there’s a method, called food pairing, to determine which foods and beverages will complement each other well. And researchers actually publish detailed studies on the subject.

What about coffee and milk? There are scientific reasons why they go so well together, and rigorous research has been done on the subject. You probably don’t need any research to answer the question, though. Coffee and milk are an iconic combination because they taste so darn good together.

You’re not the only one who understands that. It’s why restaurants automatically put a pitcher of milk (or cream) on the table when they serve your coffee, and upscale coffee drinks made with coffee and milk have become enormously popular.

How popular? Well, lattes made from espresso and milk are now the most-ordered coffees in America, with more than 67 million lattes served during the last calendar year they measured such things. That’s right, people order lattes more often than they order a regular coffee with milk and sugar.

Let’s figure out the reasons behind those amazing numbers.

Why Coffee and Milk?

The first recorded evidence of someone adding milk to coffee dates back to 1660, when a Dutch ambassador to China adapted the local tradition of adding milk to tea. Later in the 15th century, an Austrian coffee owner started serving coffee with milk because his customers didn’t like the bitter taste of the strong Turkish brew he offered.

An enduring, worldwide tradition was born.

But what makes the pairing such a great match for coffee drinkers?

The simple answer is that milk counteracts the natural bitterness in coffee that’s produced by its acidity. The more detailed answer is that the proteins in milk (specifically casein and whey proteins) combine with coffee’s antioxidant polyphenols to create the taste we know and love as “coffee and milk.” (If the science interests you, Nestlé has also done research showing that the beneficial effects of polyphenols aren’t affected when coffee is mixed with milk.)

Before we move on, there’s one more reason to consider adding milk to your coffee or coffee drink: it provides additional health benefits, and we’re not just talking about milk’s vitamins, nutrients and contribution to bone health. Drinking very hot coffee can obviously cause throat burns, and those burns appear to increase the danger of suffering throat cancer. Using milk to cool down your coffee isn’t just common sense, it’s medical sense, too.

Pouring milk into a cup of coffee is easy. Making a latte is harder. But it’s worth the extra effort.

What Is a Latte?

The full name for a latte is caffe latte (often incorrectly written as “café latte”). The term is derived from the Italian “caffè e latte,” meaning – not surprisingly – “coffee and milk.” But “coffee and milk” doesn’t begin to do justice to a well-made latte.

To begin with, a latte isn’t made with what Americans think of as coffee – it’s made with espresso. If the drink is made with brewed coffee it’s not technically a latte. It’s “café au lait,” the French term for “coffee with milk”. (Want to get even more confused? In Northern Europe, for some reason, they call a latte “café au lait.” But we digress.)

Surprisingly, the latte seems to be an American invention; it wasn’t even served in European coffee shops until the middle of the 20th century. These days, it’s almost as ubiquitous as the cappuccino.

Espresso and milk are the key ingredients of a latte. They’re usually combined in a ratio of 1/3 espresso and 2/3 steamed milk, with a small layer of textured milk “microfoam” on top. Naturally, you want to use high-quality espresso, and whole milk will create the best froth.

But using the right technique for making a delicious latte is just as important as having the right liquids to make it with.

  1. Start with freshly-brewed espresso at the bottom of your mug or latte glass. Latte is usually made with one shot of espresso, but double the milk if you’re using a double shot of espresso.
  2. Next, put milk into a milk jug so it’s about half full (no, it doesn’t literally have to be a jug). You’ll be using the steam wand on your espresso machine to foam the milk, but be sure to purge the steam wand first. 
  3. Start with the wand an inch below the surface of the milk, and slowly lower it toward the bottom of the jug. That will create a whirlpool of milk, with a nice layer of milk foam at the top. Steam until the milk reaches 140°F.
  4. Swirl the jug to remove air bubbles, then pour the milk into the espresso. This is where baristas truly earn their stripes; they start pouring from up high, then slowly lower the milk jug and pour from a steeper angle, in order to ensure a perfect, thin layer of microfoam. (The best baristas create what’s called “latte art,” patterns or designs in the foamed milk.)
  5. Yummm!

Of course, the drink will taste almost as good if you don’t use professional techniques. But if you’re going to do something, it pays to do it right. Right?

When a recipe becomes a classic, it doesn’t take long for people to play around with variations on the recipe. And several variations of this already-perfect espresso coffee drink are popular enough to be served at coffee houses around the world.

Ways to Change Up Your Latte

The most obvious variation on latte is the iced latte. Adding ice may ruin the beautiful layer of foam on top, but it’s worth the sacrifice on a hot summer day.

It might seem like flavorings would disrupt the ideal marriage of coffee and milk, but adding them to a latte has now become completely acceptable in the coffee world.

Flavored syrups and powders are both commonly added to these espresso drinks to create mint, vanilla, cinnamon, hazelnut, almond – and needless to say, if you’re a regular at Starbucks – pumpkin spice lattes. In the same vein, adding chocolate syrup to a latte makes it a mocha latte (often called a caffè mocha or mochaccino). Some might consider it sacrilegious, but adding vanilla ice cream to a latte has also recently become a thing.

And if you’re feeling more traditional, you can always order a café au lait (called a café con leche in Spanish), with strong coffee in place of the espresso.

Matcha chai latte? Oat milk latte? We wouldn’t exactly call these tea drinks “latte,” but they’re popular and delicious, and of course, tea and milk is another match with a long and storied history.

Espresso Drinks Similar to Latte

What do lattes, cappuccinos, macchiatos, flat whites and cortados have in common, other than the fact that they’re often-confused names on a coffee menu? They’re all made with different amounts of espresso, milk and milk foam – which is why we said earlier that technique is crucial.

  • Flat White: This brew originated in Australia and is essentially the same as a latte, but with a thinner layer of foam on top. Less milk foam means the flavor of the espresso dominates a little more.
  • Cortado: Eliminate the foam (or cut it down even more) and you have a cortado, made with equal amounts of espresso and steamed milk.
  • Cappuccino: Italy’s time-honored morning beverage is created with one-third espresso, one-third steamed milk, one-third milk foam.
  • Macchiato: This one can be confounding, since a “macchiato” can be made in two ways. The classic espresso macchiato (macchiato is Italian for “marked”) is espresso which has been “marked” with small amounts of steamed milk and foam. A latte macchiato has equal parts espresso and steamed milk, with the espresso poured into the milk to “mark” it.
  • Americano and Long Black: Don’t like milk, or lactose intolerant? An Americano is simply espresso that’s been diluted by pouring hot water over it; a Long Black is the same drink, but with the espresso poured over the hot water instead.

Can You Make a Latte Without an Espresso Machine?

An experienced barista can make a perfect latte. If you have high-quality coffee beans (or ground coffee) and the right equipment at home, so can you.

No espresso machine, and you don’t own a Nespresso (which makes “almost espresso” from pods)? You can still come pretty close.

The key is brewing the strongest coffee possible. The best choice is an Aeropress machine, which is similar to a French press but easier to use. If you have an ordinary drip coffee maker, simply use less water in order to brew stronger coffee. One recommended coffee-to-water ratio is 1:15, but play around until you find a mix that produces coffee that’s as strong as espresso.

Making frothed milk is a bit more complicated, unless you own a milk frother (a worthwhile investment!). You can use a whisk and some elbow grease, or a blender on medium speed, and heat the milk on a stovetop. But here’s the best trick: shake the milk in a jar until it’s foamy, then microwave it for a few seconds.

Pour the milk into your strong coffee, spoon some of the foam on top, garnish with cocoa powder – and pretend you’re sitting in Starbucks, taking advantage of the free Wi-Fi while drinking it. You probably won’t even notice the difference.

Fact Checked by Jordan DeCicco

Written by Joel Fuster

3 min read

Don't snooze on us

Add some products to your cart