Vietnamese Coffee
Ratio Calculator
Exact amounts for Ca Phe Sua Da, Ca Phe Sua Nong, and Ca Phe Den. Coffee, water, condensed milk, calories, caffeine, and a complete phin brewing guide for every serving size.
Vietnamese Coffee Calculator
5 steps to your exact phin recipe
Vietnamese Coffee Ratio Quick Reference
Per serving amounts. Condensed milk goes in the glass before the coffee drips through the phin.
| Drink | Coffee | Water in Phin | Ratio | Condensed Milk | Caffeine |
|---|---|---|---|---|---|
| Ca Phe Sua Da (Traditional) | 20g (3.5 tbsp) | 80ml | 1:4 | 2 tbsp (30g) | ~240mg |
| Ca Phe Sua Da (Cafe Style) | 25g (4.4 tbsp) | 70ml | 1:2.8 | 3 tbsp (45g) | ~310mg |
| Ca Phe Sua Nong (Traditional) | 20g (3.5 tbsp) | 80ml | 1:4 | 2 tbsp (30g) | ~240mg |
| Ca Phe Den (Standard) | 15g (2.6 tbsp) | 120ml | 1:8 | None | ~180mg |
| Ca Phe Den (Strong) | 18g (3.2 tbsp) | 100ml | 1:5.5 | None | ~220mg |
What Is the Vietnamese Coffee Ratio and Why Is It So Much Higher Than Western Coffee?
Vietnamese coffee is brewed as a concentrate, not as a finished drink. The traditional Ca Phe Sua Da recipe uses approximately 20 grams of coffee with only 80 ml of water, producing a 1:4 ratio by weight. For comparison, drip coffee uses 1:15, French press uses 1:15, and even espresso, which is considered very strong, uses 1:2 to 1:3. Vietnamese phin-brewed coffee sits in a unique category: more dilute than espresso but far more concentrated than any other common Western brewing method.
The reason is the condensed milk. The resulting phin concentrate is not meant to be drunk straight as a full serving of coffee. It is a highly concentrated extract that gets mixed with 2 to 3 tablespoons of sweetened condensed milk and poured over ice. The ice both dilutes and chills it. The condensed milk provides the sweetness and creaminess. What ends up in the glass after all three components are combined is a full drink with a balanced, rich, intensely flavored character that would be impossible to achieve starting from a weaker brew.
How the ratio changes for Ca Phe Den (black Vietnamese coffee)
Black Vietnamese coffee, Ca Phe Den, uses a completely different ratio because there is no condensed milk to balance the bitterness and no ice to dilute the concentration. A standard Ca Phe Den uses about 15 grams of coffee with 120 ml of water, producing a ratio closer to 1:8. This is still noticeably stronger than typical drip coffee but produces a full glass of drinkable black coffee rather than a small concentrate. The robusta beans give it a much more bitter, earthy, and thick character than arabica-based drip coffee at the same ratio.
How Much Condensed Milk Should You Use for Vietnamese Coffee?
The amount of condensed milk is the most personal variable in Vietnamese coffee. Cafes typically use 2.5 to 3 tablespoons for a single serving of Ca Phe Sua Da, which produces a noticeably sweet, almost dessert-like result. At home, starting with 2 tablespoons gives you room to adjust: if the drink is too bitter, add half a tablespoon more next time; if it is too sweet, reduce by half a tablespoon.
The condensed milk goes in the glass first. When the hot concentrated coffee drips down from the phin and hits the thick condensed milk, it partially dissolves it by gravity. Stir before adding ice to make sure the milk is fully incorporated. If you add ice before stirring, the milk stays mostly at the bottom and the last few sips taste very sweet while the top of the drink tastes only of coffee.
Why sweetened condensed milk and not regular milk?
Regular milk does not work as a substitute in traditional Vietnamese coffee for two reasons. First, the concentrated phin extract is so strong that regular milk cannot balance the bitterness without being used in very large quantities, which over-dilutes the drink. Second, sweetened condensed milk has a thick consistency that emulsifies cleanly with the coffee and ice, creating the characteristic creamy, homogeneous texture. The sugar in condensed milk is also different from granulated sugar added separately: it is already dissolved and mixed into the fat of the milk, which gives a rounder, more integrated sweetness rather than a sharp sweetness on the palate.
How Does a Vietnamese Phin Filter Work and Why Does It Matter to the Ratio?
A phin is a personal-sized drip filter made of aluminum or stainless steel with four components: a perforated bottom plate that rests inside the cup and holds the filter above the condensed milk, a cylindrical brewing chamber where the coffee goes, a perforated press plate that sits on top of the grounds and applies controlled pressure, and a lid that covers the top to keep heat inside during the slow drip.
The press plate is the critical variable that most people who are new to phin brewing misunderstand. It is not a lid or a cosmetic part — it is a compression device that controls the flow rate of water through the grounds. Turn it clockwise until you feel the first resistance from the compressed grounds, then stop. This produces the characteristic slow drip of one drop per second, which is what creates the concentrated extract. Turn it too tight and no water passes through at all. Leave it too loose and the water flows through in 2 minutes, producing weak, under-extracted coffee.
Phin size and its relationship to coffee and water amounts
Vietnamese phins are sold by cup capacity, where a Vietnamese “cup” is approximately 30 ml, much smaller than a Western coffee cup. A 4-cup phin holds about 80 to 100 ml of water and works well for 15 to 20 grams of coffee. An 8-cup phin handles 130 to 160 ml and works for 25 to 30 grams. Matching the phin size to your coffee dose matters: a small phin overfilled with grounds will have no room for water; a large phin used with a small dose of coffee produces a thin, weak extract because the water-to-grounds contact area is too large.
How Much Caffeine Is in Vietnamese Coffee? The Robusta Reality
Vietnamese coffee is significantly higher in caffeine than almost any Western coffee drink, and this is not commonly understood by people who encounter it for the first time at a Vietnamese restaurant. The reason is robusta beans. Arabica, which is used in most Western specialty coffee, contains roughly 1.2 to 1.5 percent caffeine by weight. Robusta, which dominates Vietnamese coffee blends, contains 2.2 to 2.7 percent caffeine by weight — roughly twice as much.
A standard Ca Phe Sua Da made with 20 grams of Vietnamese robusta coffee contains approximately 200 to 300 milligrams of caffeine in the brew, depending on extraction. For context, the average espresso shot contains about 60 to 80 milligrams. A standard 8-ounce cup of arabica drip coffee contains about 80 to 120 milligrams. A Ca Phe Sua Da is roughly equivalent to 2 to 3 espresso shots in caffeine content, in a single iced drink that most people consume fairly quickly.
Practical implications for first-time drinkers
If you are making Vietnamese coffee for someone who does not regularly drink espresso or strong coffee, start with the Light strength option and use a full glass of ice for maximum dilution. The sweetness of the condensed milk can mask how caffeinated the drink actually is, and people occasionally consume more than intended as a result. Vietnamese coffee is perfectly safe for most people in moderate quantities, but the caffeine content is worth knowing if you are sensitive or if you are making it for someone who is not a regular coffee drinker.
Ca Phe Trung (Egg Coffee) and Ca Phe Cot Dua (Coconut Coffee)
Ca Phe Trung, or Vietnamese egg coffee, is a Hanoi specialty invented in the 1940s when fresh milk was scarce. Egg yolks are whisked with sweetened condensed milk and sometimes sugar into a thick, pale yellow foam that is spooned over a small cup of phin-brewed coffee. The result is drunk hot, by sipping through the foam layer. The phin-brewed base uses the standard ratio (20g coffee, 80ml water), but the serving size is smaller, closer to a demitasse, so the foam-to-coffee ratio is high.
Ca Phe Cot Dua, coconut coffee, is popular in Ho Chi Minh City and throughout southern Vietnam. Phin-brewed coffee is blended with coconut cream, condensed milk, and often ice into a thick, cold drink resembling a frappe. The phin coffee base is the same, but the finished drink is completely different in texture and flavor from Ca Phe Sua Da. It requires a blender rather than just a phin and a glass, which is why it is outside the scope of this calculator but worth knowing about if you are exploring the full range of Vietnamese coffee styles.
Vietnamese Phin Coffee Troubleshooting
Frequently Asked Questions About Vietnamese Coffee
What is the Vietnamese coffee ratio?
+Ca Phe Sua Da (iced with condensed milk): approximately 20g coffee with 80ml water, a 1:4 ratio. Ca Phe Den (black): approximately 15g coffee with 120ml water, a 1:8 ratio. Both ratios are much higher in coffee dose than Western brewing methods because the phin brews a concentrate meant to be mixed with condensed milk and/or ice.
How much condensed milk do I use for Vietnamese coffee?
+2 tablespoons is the standard home recipe. Vietnamese cafes typically use 2.5 to 3 tablespoons. Start at 2 and adjust to taste. The condensed milk goes in the glass before the coffee drips through. Use sweetened condensed milk, not evaporated milk or regular milk.
What is Ca Phe Sua Da?
+Ca Phe Sua Da is Vietnamese iced coffee with sweetened condensed milk. Ca phe = coffee, sua = milk, da = ice. Condensed milk in the glass, slow phin-brewed concentrate dripped on top, then poured over ice. It is one of the most popular coffee drinks in Vietnam and at Vietnamese restaurants worldwide.
How much coffee do I put in a phin filter?
+Traditional Ca Phe Sua Da: 20g (about 3.5 level tablespoons) with 80ml water. For a stronger cafe-style version: 22 to 25g with 70 to 80ml water. For Ca Phe Den (black): 15g with 120ml water. Use Vietnamese robusta coffee or a chicory blend pre-ground for phin use.
How much caffeine is in Vietnamese coffee?
+A standard Ca Phe Sua Da with 20g of robusta coffee contains approximately 200 to 300mg of caffeine per serving, roughly equivalent to 2 to 3 espresso shots. Robusta beans contain about twice the caffeine of arabica. Ca Phe Den contains similar caffeine in a larger volume of liquid but the same total dose per serving.
What type of coffee should I use for Vietnamese coffee?
+Traditional Vietnamese robusta, ideally Trung Nguyen brand, or Cafe du Monde Coffee with Chicory (widely available in Western markets). The coffee should be pre-ground to a medium-fine consistency or ground specifically for phin brewing. Very coarse grinds produce weak results; espresso-fine grinds can clog the phin filter.
How does a phin filter work?
+A phin is a four-part metal gravity dripper: perforated bottom plate, brewing chamber, press plate (which compresses grounds to control flow rate), and a lid. Hot water drips through the compressed grounds over 5 to 8 minutes, producing a concentrated extract. The press plate tension is the key variable: too tight and nothing drips; too loose and the brew is weak and fast.
Why is my phin dripping too slowly or not at all?
+The press plate is too tight. Turn it counterclockwise by half a turn, wait 30 seconds, and check. The correct tension produces about one drop per second. If you have never used a phin before, expect to spend the first two or three brews finding the right press-plate position for your specific grind.
Can I make Vietnamese coffee without a phin?
+Yes. A French press is the best substitute. Use 20g of coffee with 80ml of water, steep 4 minutes, press, and pour over condensed milk and ice. A moka pot also produces a concentrated result. Standard drip machines are not suitable because they use too much water and cannot produce the concentrated extract that makes Ca Phe Sua Da work.
How many calories are in Ca Phe Sua Da?
+About 120 to 130 calories per serving with 2 tablespoons of condensed milk. Almost all calories come from the condensed milk at about 62 calories per tablespoon. Cafe-style with 3 tablespoons is approximately 186 calories. Ca Phe Den (black, no milk) has essentially zero calories.
Three Habits That Make a Better Ca Phe Sua Da Every Time
Learn your phin’s specific press-plate tension
Every phin is slightly different. A new phin might require a quarter turn from first contact; an older phin with worn threads might need a half turn. The only way to learn it is to pay attention to the drip rate on the first few brews and adjust from there. Once you know your phin’s sweet spot, you can set it from muscle memory without thinking about it. The goal is a steady drip that completes in 5 to 8 minutes, not a thin stream and not a stuck filter.
Preheat everything before brewing
Pour a small amount of boiling water through the empty phin before adding coffee, and let it heat the glass below. Vietnamese phin filters are small and made of thin metal that loses heat quickly. Starting with a cold phin means the first 20 to 30 seconds of brew water drops significantly in temperature before it even reaches the grounds, which reduces extraction. The preheat takes 30 seconds and produces noticeably better results, especially with the stronger concentration ratios where every variable matters more.
Stir before the ice, always
The condensed milk settles at the bottom of the glass during the 5 to 8 minute brew. Without stirring before adding ice, the coffee and milk are separate layers that only half-mix when the ice goes in. The first few sips taste of coffee; the last few sips taste of sweet condensed milk. Stirring after the phin finishes dripping and before adding ice ensures the drink is uniform from top to bottom, which is how it should be.
Your Starting Recipe for Ca Phe Sua Da
2 tablespoons of sweetened condensed milk in a glass. 20g of Vietnamese robusta coffee in a preheated phin. 80ml of water just off the boil. 5 to 8 minutes of slow drip. Stir. Pour over a tall glass of ice. That is the complete recipe. The calculator above scales it for any number of servings, any strength preference, and any drink style. Once you taste it right, everything else is fine-tuning.