Ca Phe Sua Da
Cà phê sữa đáka fey suh-uh dah
Thick, bitter robusta and sweet condensed milk, stirred hot and thrown over ice. It tastes like dark caramel with a caffeine kick that lasts all afternoon, and it only works if the milk dissolves before the ice goes in.
At a glance
- Coffee : water
- 1:4
- Active time
- 3 min
- Total time
- 8 min
- Makes
- 1 glass
- Serve
- Over ice
- Kit
- Phin filter
Ingredients
Note: No phin? A double shot from a moka pot or an AeroPress at the same dose works. Drip machine coffee is too weak for this.
Method
-
Condensed milk in the bottom
Pour the condensed milk into a short heatproof glass, the one the phin will sit on. Not the tall glass with the ice.
The milk has to meet hot coffee first. Cold condensed milk dropped onto ice turns to a stiff ribbon that never quite dissolves.
-
Bloom the grounds
Set the phin on the glass, add the coffee, shake it level and rest the insert on top. Pour in about 20 ml of water and wait.
The grounds swell against the wall and seal the chamber. Skip this and the water runs down the sides in a minute.
Bloom 30 seconds -
Fill and let it drip
Add the rest of the water, put the lid on and leave it. Four to five minutes is right. You should be able to count the drips.
If it is through in ninety seconds, grind finer next time. If it stalls completely, coarser.
Drip 4 to 5 minutes -
Stir it hot
Lift the phin off and stir until the colour is even and nothing pale is left on the bottom. Ten seconds of proper stirring.
This is the step people skip, and it is why their iced coffee is bitter at the top and syrup at the bottom.
-
Pour over ice
Pour the hot coffee straight over a tall glass packed with ice and stir once more.
In Vietnam it often comes the other way, the hot glass and a separate glass of ice, so you pour when you are ready. Either way, the ice goes in last.
Why this works
Robusta carries roughly twice the caffeine of arabica and noticeably more chlorogenic acid, and both of those taste bitter. On its own a phin of dark robusta is harsh. That bitterness is exactly what stands up to condensed milk, which is around 45 percent sugar by weight and would make a cup of arabica taste like sweet milky water. The two were matched for each other.
The condensed milk was a matter of supply rather than taste. Coffee arrived in Vietnam with French missionaries in the nineteenth century, usually dated to 1857, and fresh dairy did not keep in the heat. Tinned condensed milk did. By the time Vietnam became one of the largest coffee producers in the world, almost entirely robusta, the combination was simply what coffee meant.
Stirring while hot matters for a physical reason. Sugar dissolves several times faster in hot liquid than cold, and condensed milk is dense enough to sink and sit. Mix it at 80°C and it disappears into the coffee in seconds. Add the ice first and the bottom inch of the glass is a sugary sludge you meet at the end through the straw.
The 1:4 brew ratio looks absurdly strong, and it is meant to be. A full glass of ice will melt by a third before you finish, so the coffee starts at roughly double strength and arrives at normal.
Variations
- Cà phê đen đá: black over ice, usually with a spoon of sugar stirred in while hot.
- Cà phê sữa nóng: the hot version, served in the glass with the phin still dripping, often in a bowl of hot water.
- Bạc xỉu: mostly milk with a little coffee, the bac xiu that Saigon orders when it wants something gentler.
- Stronger: 40 ml of condensed milk and 30 g of coffee, which is closer to what a street stall in District 1 hands you.
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Questions
What is the best coffee for Vietnamese iced coffee?
A dark-roast Vietnamese robusta, ideally whole bean ground medium-fine. Some Vietnamese roasters roast with a little butter and sugar, which gives the cocoa note people recognise. A dark arabica works but makes a thinner, sweeter drink where the milk dominates.
Can I make it without a phin filter?
Yes. Brew 100 ml of very strong coffee with a moka pot or an AeroPress at the same 25 g dose and pour it onto the condensed milk. You lose the slow drip, not the drink.
Why is my Vietnamese coffee too sweet at the bottom?
The condensed milk was not dissolved before the ice went in. Stir the hot coffee and milk together until the colour is completely even, then pour over ice.
How much caffeine is in a cà phê sữa đá?
Somewhere around 150 to 250 mg depending on the dose and the beans, because robusta carries about twice the caffeine of arabica. That is more than most cafe lattes.
Can I use evaporated milk instead of condensed milk?
Not as a straight swap. Evaporated milk has no added sugar, so you would need to sweeten separately, and it lacks the thick body that condensed milk gives the drink. It makes a perfectly nice iced coffee, just not this one.