Vietnamese Iced Coffee (Ca Phe Sua Da) Authentic Recipe

Vietnamese iced coffee, cà phê sữa đá, is dark-roast robusta brewed slowly through a small metal phin filter onto sweetened condensed milk, stirred while hot and poured over a full glass of ice. A standard glass in one published recipe uses 20 g of coffee, 100 ml of water just off the boil and about 2 tablespoons (30 ml) of condensed milk, with the drip taking four to six minutes.

This guide gives that recipe step by step, explains why the coffee is brewed so strong, shows how to fix a drip that runs too fast or stalls, and covers the drinks built on the same base. The quantities come from two published Vietnamese coffee guides and are named where they are used. Daily Home Coffee does not test recipes hands-on, so treat the numbers as starting points, as both guides do.

What Makes Vietnamese Iced Coffee So Special?

The drink has four ingredients: dark-roast robusta coffee, water, sweetened condensed milk and ice. Wikipedia describes it as coffee made by pouring hot water through a phin “containing dark-roast robusta coffee grounds, into a small cup with sweetened condensed milk already in it”, then stirring and pouring it into a tall glass of ice. In southern Vietnam it is cà phê sữa đá (iced milk coffee); in the north it is often called cà phê nâu đá (iced brown coffee).

The condensed milk has a historical reason. Under French colonial rule fresh milk was scarce and spoiled quickly in the tropical heat, so imported, shelf-stable sweetened condensed milk took its place. Dark-roast robusta was bitter enough to offset that sweetness, and ice was added for the hot climate.

Robusta (Coffea canephora) is the other half of the story. Wikipedia gives its caffeine content as 2.7% against arabica’s 1.5%, and describes the beans as lower in acidity, more bitter and less fruity. French colonists introduced robusta to Vietnam in the late 19th century, and Vietnam is now the largest exporter of robusta coffee.

The Flavor Profile You Can Expect

The vietnameseiced.coffee recipe describes the drink as bitter and sweet at once, with a body heavy enough to coat the mouth. The coffee underneath is commonly described as cocoa, dark chocolate and roasted grain, which the same guide notes is the standard description for dark-roasted robusta rather than something particular to Vietnam.

• Bitterness: from dark-roasted robusta, which Wikipedia describes as more bitter than arabica.
• Sweetness: from the condensed milk, which covers the bitterness without thinning the drink.
• Body: thick, because the coffee is brewed at about 1:5 and the condensed milk adds weight that sugar and fresh milk together do not.
• Dilution: the melting ice is part of the drink, which is why the coffee starts out so strong.

It is also a sweet drink. The vietnameseiced.coffee recipe works out, from USDA nutrition data for sweetened condensed milk, that a 30 ml serving carries roughly 21 g of sugar. Using one tablespoon instead of two still works and lets more of the coffee through.

What You’ll Need for Authentic Ca Phe Sua Da

The equipment list is short. The recipe below assumes a standard single-serve phin of 120 ml.

Essential Gear

• Phin filter: a small metal drip filter with a chamber, a perforated base plate, a press plate and a lid.
• Heatproof glass: one the phin sits on without wobbling.
• A second tall glass packed with ice. The recipe says roughly 160 ml of coffee needs a 300 ml glass full of cubes.
• Kettle and a long spoon for stirring.
• Kitchen scale (optional): a spoonful of ground coffee changes weight with grind and roast, so weighing is more repeatable.

Ingredients

• Coffee: 20 g of dark-roast Vietnamese robusta, ground medium-coarse. Pre-ground Vietnamese coffee is usually already close to the right grind.
• Water: 100 ml just off the boil, 90-96 °C.
• Sweetened condensed milk: 30 ml, about 2 tablespoons, to start. Cafés in Vietnam often use more.
• Ice: a full tall glass.

Read the ingredient list before buying Vietnamese-roasted coffee. The vietnameseiced.coffee guides note that traditional Vietnamese roasting may include butter, sugar or caramel, and that cheap ground coffee is sometimes cut with roasted corn or soybean. If you want only coffee in the glass, check the bag. Any dark-roast coffee will work, but the same recipe warns that it will lose the heavy body robusta gives, and that arabica in particular gets buried under the milk.

Step-by-Step Vietnamese Iced Coffee Recipe

These steps follow the vietnameseiced.coffee recipe for one glass: 20 g of coffee, 100 ml of water and 30 ml of condensed milk. Nguyen Coffee Supply’s phin guide uses a lighter dose, 2 tablespoons (14 g) of coffee to 4 oz of water at 195-200 °F, with a 1 oz bloom for 45 seconds. Pick one recipe and adjust from there rather than mixing the two. For more on how the phin itself works, see the phin brewing guide.

Preparing Your Glass and Filter

1. Spoon the condensed milk into the bottom of the heatproof glass. It goes in first because the hot coffee dripping onto it starts to dissolve it, which makes it stir in easily later.
2. Set the phin on the glass and add the coffee to the chamber.
3. Shake or tap the phin so the bed is flat. Do not tamp it.
4. Lower the press plate onto the coffee and turn it down until it just touches the bed. Finger-tight, then stop.

The Brewing Process

1. Pour about 20 ml of hot water over the grounds, just enough to wet them, and wait 30-45 seconds. The bed swells against the press plate, and that swelling is what seals the bed and slows the rest of the brew.
2. Fill the chamber with the remaining 80 ml of water and put the lid on.
3. Leave it alone. Stirring, pressing the plate down or lifting the lid to check all disturb the bed.
4. Watch the drip. It should start at roughly one drop a second and slow as it goes. When the drops become occasional rather than steady, it is done, usually four to six minutes after the main pour.

Finishing Your Ca Phe Sua Da

1. Lift the phin off and rest it on its upturned lid so it does not drip on the table.
2. Stir hard while the coffee is still hot, until the colour is completely even with no pale streaks at the bottom. The recipe says this takes longer than you expect, maybe 20 seconds.
3. Pour the mixture over the glass packed with ice. Pour onto the ice rather than into a bare glass: the dilution as it chills is part of the drink.

Why the Coffee Is Brewed So Strong

The vietnameseiced.coffee recipe brews at about 1:5, 20 g of coffee to 100 ml of water. It sets that against a pour-over’s 1:16, which makes the phin brew roughly three times as concentrated. The reason is dilution: the coffee has to survive both the condensed milk and the melting ice. Brewed at ordinary filter strength, the same guide says, the bottom of the glass ends up tasting like sweet water.

That strength also means a lot of caffeine for one glass, because the dose is large and robusta carries more caffeine than arabica. How much ends up in a particular glass depends on the dose, the bean and the extraction, so there is no single measured figure for it.

Common Mistakes and How to Avoid Them

Almost every problem with this drink is a drip-speed problem. The levers are grind, dose and press pressure. This table follows the troubleshooting list in the vietnameseiced.coffee recipe. Change one thing at a time so you know what made the difference.

What happened	Likely cause	What to change
Water ran through in under two minutes	Grind too coarse, press too loose, or not enough coffee	Add 2-3 g more coffee, turn the press down a little, or grind one step finer
Nothing came out, or it took fifteen minutes	Grind too fine, or the press screwed down hard	Back the press off until it barely touches; if it still stalls, grind coarser
Thin and sour	Under-extracted, usually a fast drip	Slow the drip down using the first row
Harsh and ashy, not just bitter	Over-extraction, or a very dark roast pushed too far	Speed the drip up slightly or drop the water to 90 °C; if the roast is scorched, try a different bag
Milk sits in a stubborn layer at the bottom	The coffee cooled before stirring	Stir while it is still hot

Weak or Watery Coffee

A phin that finishes in under two minutes has, in the recipe’s words, “not brewed, it has rinsed.” Check the dose first: 20 g should fill a 120 ml phin roughly a third to half full. Then check the press plate and the grind.

Overly Bitter Taste

Some bitterness is the point of dark-roast robusta. Harsh, ashy flavours are different. The recipe’s fixes are to speed the drip up a little or bring the water down to 90 °C. Some traditional Vietnamese roasts are scorched, and the guide is blunt that no technique fixes that: try a different bag.

Too Sweet or Not Sweet Enough

Start at 2 tablespoons of condensed milk for a 20 g dose and adjust. The recipe notes that southern Vietnamese cafés generally sweeten more than northern ones. If the milk is thin, use a little less water or a little more milk.

Variations to Try Once You’ve Mastered the Basics

Wikipedia lists several Vietnamese coffee drinks built on the same phin brew:

• Coconut coffee (cà phê cốt dừa): coffee mixed with a slushy made from condensed milk, coconut cream or coconut milk, and ice. It originated in Hanoi.
• Egg coffee (cà phê trứng): a Hanoi drink of phin coffee under a foam of egg yolks whipped with sugar and condensed milk, heated gently over a water bath because direct boiling would curdle the eggs. The son of the Giảng café’s founder says his father developed it in the late 1940s, when milk was scarce. It can be served hot or iced.
• Salt coffee (cà phê muối): coffee and condensed milk with a salted cream foam on top, created in Huế in 2010.
• Bạc xỉu: mostly condensed milk and fresh milk with a small amount of coffee, from the Cantonese-Vietnamese community of Saigon’s Chợ Lớn quarter in the 1950s.
• Black iced coffee (cà phê đen đá): the same brew with no milk, over ice.

Frequently Asked Questions

Can I use regular milk instead of sweetened condensed milk?

You can, but it becomes a different drink. Condensed milk supplies both the sweetness and the thick body. The vietnameseiced.coffee recipe suggests evaporated milk plus sugar or an oat condensed milk as substitutes, noting that evaporated milk is thinner and needs about 2 teaspoons of sugar per serving.

Do I really need a phin filter?

No, but the substitute has to be strong. The same recipe names a Moka pot or a double espresso as the closest match by strength, using about 60 ml of espresso and cutting the condensed milk to 20 ml. It says a drip machine or French press makes coffee too weak to survive the milk and the ice.

How long should the phin take?

About four to six minutes after the main pour. Under two minutes usually tastes thin and sour; a brew that stalls usually means the press is screwed down too hard or the grind is too fine. Nguyen Coffee Supply’s guide expects the first drop within 2 minutes and the last at around 5 minutes.

What grind should I use?

The vietnameseiced.coffee guides ask for medium-coarse, roughly coarse sand. Nguyen Coffee Supply describes its grind as “fine, like sand.” The two guides label it differently, so start at medium-coarse and let the drip time decide.

Is Vietnamese iced coffee stronger than normal coffee?

Usually, yes. It is brewed at about 1:5 rather than the 1:16 of a typical pour-over, and robusta contains more caffeine than arabica. The exact caffeine in a glass depends on dose, bean and extraction.

Final Thoughts and Your Next Steps

Start with the standard glass: 20 g of dark robusta ground medium-coarse, 100 ml of water just off the boil, 2 tablespoons of condensed milk in the glass first, a press that only just touches the coffee, and four to six minutes of leaving it alone. Stir hard while hot and pour over a full glass of ice.

If the glass is not right, time the drip and use the troubleshooting table to change one thing. Adjust the condensed milk last, once the coffee itself is brewing in the four-to-six-minute window.