Brew a short, strong phin coffee onto 20 to 30 ml of sweetened condensed milk, stir until fully combined, then pour over a full glass of ice. The order matters. The milk goes in the glass first, the hot coffee drips onto it, and the ice comes last. Do it the other way and the milk sinks into a cold clump that never mixes.

The recipe

Element	Amount	Notes
Coffee	22 to 25 g, medium grind	Robusta or a Robusta-led blend, roasted medium dark to dark
Water	85 to 95 ml at 90 to 92 degrees	Bloom with 25 to 30 ml, wait 30 to 45 seconds, then fill
Condensed milk	20 to 30 ml	Start at 20 ml and adjust. Sweetness varies a lot by brand
Ice	A full glass	Large cubes melt slower and dilute less

That is roughly a 1:3.5 coffee to water ratio, several times stronger than western filter coffee. It has to be: the drink then meets both milk and melting ice.

Step by step

• 1. Spoon the condensed milk into the bottom of a heatproof glass.
• 2. Rinse the phin with hot water, then dose and level the coffee.
• 3. Set the phin on the glass. Bloom, wait, then fill and cover.
• 4. Let it drip 4 to 6 minutes. You should see dark coffee layering over pale milk.
• 5. Lift the phin off, then stir hard until the colour is completely even. This is the step most people rush.
• 6. Pour into a second glass packed with ice, or add ice to the same glass.

Why condensed milk

Fresh milk did not travel or keep well in a hot climate before widespread refrigeration, while sweetened condensed milk came in a tin, lasted, and was already sweet. It also happens to be a good technical match: the thick sugar content stands up to a very strong, slightly bitter Robusta cup where fresh milk would simply be swamped. What began as a practical substitution became the defining flavour of Vietnamese coffee.

Common mistakes

Problem	Cause	Fix
Watery, tastes of nothing	Coffee brewed too weak, or ice added too early	Keep water under 95 ml for 22 to 25 g, add ice last
Sickly sweet	Too much condensed milk for the strength of the coffee	Drop to 20 ml, or brew stronger rather than adding less milk
Milk sitting at the bottom	Not stirred while still hot	Stir immediately after the drip finishes, before ice
Harsh and drying	Over-extraction or a scorched roast	See fixing bitterness

Bac xiu, the milkier cousin

Order a bac xiu and you get the same building blocks with the proportions reversed: much more milk, much less coffee, often with a splash of hot water. It began as a drink for people who wanted the taste without the hit. If you like ca phe sua da but find it heavy, this is the version to ask for.

Making it with specialty coffee

Traditional recipes assume dark roasted commercial Robusta. With Fine Robusta or Arabica roasted medium, cut the condensed milk to about 15 to 20 ml so the aromatics are not buried, and brew slightly hotter, around 92 to 94 degrees. You end up with a cleaner drink that still reads as Vietnamese.

Want to taste those versions side by side? Stone Village Coffee Lab teaches exactly this in its Vietnamese phin coffee class in Mang Den, where you brew your own cup and compare ratios.

More on Vietnamese phin coffee

Our English guides to the phin, written by trainers at a coffee lab inside a Vietnamese growing region.

• How to brew Vietnamese phin coffee
• What is a Vietnamese phin
• Vietnamese phin coffee class in Mang Den, learn it hands-on at the farm (see the fee and book)
• PHIN VIET Foundation, the one-day course

Frequently asked questions

What is ca phe sua da in English?

Vietnamese iced milk coffee: phin brewed coffee mixed with sweetened condensed milk and poured over ice. Ca phe means coffee, sua means milk, da means ice.

Can I use regular milk instead?

You can, but it is a different drink. Fresh milk lacks the sugar and body to balance a strong Robusta cup, so most people add sugar separately.

How much condensed milk per cup?

Start with 20 ml per 22 to 25 g of coffee and adjust to taste. Brands differ in sweetness more than most people expect.

Sources

• Specialty Coffee Association, brewing ratio and extraction guidance, sca.coffee
• Vietnamese Phin Brewing Standard, compiled by Stone Village Coffee Lab, see the course page