Close your eyes and picture it: a tiny cup, almost comically small. A dense, caramel-gold foam — the espumita — floating on top of an ink-black concentrated shot. The aroma hits first: intense, slightly sweet, unmistakably bold. One sip and you understand why café cubano is not just a coffee drink. It is a social ritual, a cultural institution, and for millions of Cuban Americans, an everyday act of identity and connection.
But here is the conversation nobody at your local ventanita is having: traditional Cuban coffee brewed from commercial dark-roasted espresso beans typically measures pH 4.5–4.8. For anyone with acid reflux, GERD, or a sensitive gut — including the growing population on GLP-1 medications — that acid load compounds every morning. The solution is not to abandon café cubano. It is to make it with the right bean.
Coffee arrived in Cuba in the 1740s, brought by French colonists fleeing the Haitian Revolution. The island's fertile volcanic soils, tropical climate, and mountainous interior proved ideal for Arabica cultivation, and Cuban coffee quickly became among the most prized in the Caribbean.
The moka pot — introduced by Alfonso Bialetti in Italy in 1933 — found its way to Cuba and became the standard home brewing vessel for café cubano. The combination of moka pot pressure extraction and the espumita technique created something entirely new: a coffee preparation unlike anything in Italy, Spain, or the rest of Latin America.
Cuban coffee culture migrated to Miami with the Cuban exile community in the 1960s, where it took root in Little Havana and Brickell and spread throughout South Florida. Today, the ventanita — the walk-up window at Cuban cafes — is as iconic in Miami as the coffee cart in Manhattan.
Two things distinguish café cubano from all other espresso preparations: the espumita and the sweetening method.
Espumita is the caramel-colored, thick foam that sits atop an authentic café cubano. It is made by adding 1–2 teaspoons of sugar (traditionally demerara or raw cane sugar) to a small container — usually the bottom half of the moka pot cap or a small cup — and drizzling the very first drops of espresso from the moka pot onto the sugar. The hot coffee and the vigorous stirring (30–60 seconds) emulsifies the sugar and coffee oils into a thick, stable foam.
The result is a texture and sweetness integration that is completely different from simply adding sugar to finished espresso. The espumita is not dissolved into the coffee — it rests on top, creating a layered flavor experience as you drink through it.
Traditional café cubano is never made by stirring sugar into finished espresso. The espumita method — where sugar is whipped with the first extraction drops — creates a chemical integration between the coffee oils and the sugar that produces a dramatically different mouthfeel and sweetness than post-brew sweetening. This is why café cubano tastes fundamentally different from a sweetened Italian espresso even when the same bean and same amount of sugar are used.
A moka pot (any size — 3-cup and 6-cup are most common for café cubano). A small container for the espumita. A spoon or small whisk. Demerara or raw cane sugar. Ground Puroast Italian Espresso Roast.
Slightly coarser than espresso machine grind but finer than drip — similar to fine table salt. The moka pot generates less pressure than an espresso machine, so an espresso-fine grind will cause over-extraction and potentially dangerous pressure buildup. Most pre-ground espresso coffees are slightly too fine for safe moka pot use.
Fill the moka pot's bottom chamber with cold, filtered water to just below the pressure relief valve. Do not cover the valve.
Fill the filter basket with ground Puroast Italian Espresso Roast, leveled but not tamped. Tamping creates excessive resistance and uneven extraction in a moka pot. Brush any stray grounds from the basket rim and thread before closing.
Add 1–2 teaspoons of demerara sugar to a small cup or the moka pot cap. Have your stirring spoon ready. This step requires speed once extraction begins.
Place the moka pot on medium-low heat. As water in the bottom chamber heats, pressure forces it through the grounds and up into the top chamber. Watch closely. The moment coffee begins to emerge — the very first drops — immediately pour 5–10 drops into your sugar container and begin stirring vigorously.
Stir rapidly and continuously for 30–60 seconds, until the coffee-sugar mixture becomes a thick, pale caramel-colored foam. The foam should hold a ribbon when you lift the spoon. This is your espumita.
Allow the moka pot to finish extracting (remove from heat when you hear a gurgling sound — this means the water is nearly depleted). Pour the finished espresso over the espumita. Do not stir. Serve immediately.
Café cubano cut with a small splash of steamed milk — typically 1:1 ratio of espresso to milk. Less intense than a straight shot, still sweet from the espumita. Make with Puroast Italian Espresso Roast for a cortadito with no acid burn.
Equal parts strong café cubano (or moka pot espresso) and steamed whole milk. Cuba's version of a latte. The espumita integrates into the milk, distributing its sweetness throughout the cup.
A large portion of café cubano (typically 4–6 shots) served in a styrofoam cup with several small plastic cups alongside — meant to be shared among a group. The social ritual of the ventanita. A colada is poured out shot-by-shot for each person in the group.
Prepare café cubano as normal. Pour over ice immediately. The rapid chilling locks in aromatic compounds and creates a different but equally compelling flavor experience. Puroast Italian Espresso Roast iced is excellent.
| Drink | Base | Addition | Best Puroast |
|---|---|---|---|
| Café Cubano | 2oz moka espresso | Espumita only | Italian Espresso Roast |
| Cortadito | 2oz moka espresso | 2oz steamed milk | Italian Espresso Roast |
| Café con Leche | 4oz strong coffee | 4oz steamed milk | House Blend or Dark French Roast |
| Colada | 6–8oz moka espresso | Shared espumita | Italian Espresso Roast |
| Problem | Cause | Fix |
|---|---|---|
| No foam forming | Too few drops of coffee, or stirring too slowly | Use only the first 5–10 drops; stir faster and more vigorously |
| Foam too dark | Too much coffee in espumita base | Use fewer drops — 5 maximum |
| Foam collapses quickly | White sugar used instead of demerara | Use raw cane or demerara sugar |
| Bitter finish | Over-extracted or high-acid beans | Switch to Puroast Italian Espresso Roast at pH 5.82 |
| Sour taste | Under-extraction or very high-acid beans | Grind slightly finer; switch to Puroast |
The espumita — the caramel-colored sugar foam created by whipping the first drops of espresso with demerara sugar. This technique creates a flavor and texture integration unique to Cuban coffee culture that cannot be replicated by simply adding sugar to finished espresso.
A moka pot is traditional and most accessible. An espresso machine works equally well. A French press or drip machine cannot produce the concentrated extraction needed for authentic café cubano espumita.
Demerara or raw cane sugar. Its larger crystal structure and natural molasses content produces a richer, more complex espumita than refined white sugar. Florida Crystals brand is widely used in Miami.
Traditional café cubano from commercial dark espresso beans measures pH 4.5–4.8. Puroast Italian Espresso Roast at pH 5.82 delivers the same bold, concentrated flavor with dramatically less acid — verified by NC A&T University 2024.
Standard café cubano is problematic for GLP-1 users due to high acid content and potential nausea amplification. Puroast Italian Espresso Roast at pH 5.82 allows GLP-1 users to enjoy café cubano without the acid-driven discomfort that high-acid espresso causes.
Puroast Italian Espresso Roast — bold, rich, pH 5.82 — is the foundation for the best café cubano you have ever made at home. Subscribe and save 15%.
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