How to Make Traditional Vietnamese Coffee

Quick answer

• Use a phin filter, not a drip machine, for authentic extraction.
• Choose dark roast robusta coffee, ideally ground specifically for phin.
• Sweetened condensed milk is essential for the classic taste.
• Brew slowly, allowing gravity to do its work for a rich, strong concentrate.
• Serve hot or over ice, depending on your preference.
• Don’t rush the process; patience is key to a good brew.

Who this is for

• Coffee lovers eager to try a distinct, strong coffee experience at home.
• Anyone who enjoys sweet, rich coffee and wants to replicate a cafe favorite.
• Home brewers looking to expand their skills beyond standard drip or pour-over methods.

What to check first

Brewer type and filter type

For traditional Vietnamese coffee, you’ll need a Vietnamese coffee filter, known as a “phin.” This is a small, gravity-fed metal filter that sits on top of your cup. It typically consists of a brewing chamber, a press screen, and a lid. Unlike paper filters, the phin allows for a slower, more concentrated extraction. Ensure your phin is clean and has all its components.

For traditional Vietnamese coffee, you’ll need a Vietnamese coffee filter, known as a “phin.” If you don’t have one yet, this is the essential tool for authentic extraction.

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Water quality and temperature

Good quality water is crucial for any coffee. Filtered water is recommended to avoid off-flavors from chlorine or minerals. The ideal water temperature for brewing Vietnamese coffee is usually between 195-205°F (90-96°C). Using water that’s too hot can lead to over-extraction and bitterness, while water that’s too cool might result in a weak, under-extracted brew.

Grind size and coffee freshness

The grind size for a phin filter is typically medium-fine to medium, slightly coarser than espresso but finer than drip coffee. If the grind is too fine, it can clog the phin and lead to extremely slow dripping or no dripping at all. If it’s too coarse, the water will pass through too quickly, resulting in a weak brew. Use freshly roasted coffee beans, ideally a dark roast robusta, ground just before brewing for the best flavor. Stale coffee loses its aromatic compounds and will produce a flat-tasting brew.

Coffee-to-water ratio

A strong coffee-to-water ratio is characteristic of Vietnamese coffee. A common starting point is about 2 tablespoons (around 15-20 grams) of coffee for a single serving, yielding about 4-5 ounces of brewed coffee. This can be adjusted based on your desired strength. The phin’s design naturally limits the water volume, leading to a concentrated brew.

Cleanliness/descale status

Always ensure your phin filter is clean before each use. Residue from previous brews can impart stale or bitter flavors. A simple rinse with hot water is usually sufficient for daily cleaning. Periodically, you may want to wash it with mild soap and water, especially if you notice any buildup. Descaling is generally not an issue with phin filters as they don’t have heating elements.

Step-by-step to make Vietnamese coffee

1. Prepare your cup: Place 1-2 tablespoons of sweetened condensed milk at the bottom of your heat-proof glass or mug.

• Good looks like: The condensed milk is evenly spread at the bottom, ready to mix with the hot coffee.
• Common mistake: Adding too much or too little condensed milk. Avoid it by: Starting with 1 tablespoon and adjusting to taste in future brews.

2. Pre-heat the phin and cup: Pour a small amount of hot water into your phin and cup, then discard.

• Good looks like: The phin and cup are warm to the touch, preventing the coffee from cooling too quickly.
• Common mistake: Skipping this step. Avoid it by: Always pre-warming your equipment to maintain brewing temperature.

3. Add coffee grounds: Place the phin’s brewing chamber onto your cup. Add 2-3 tablespoons (15-20g) of medium-fine ground dark roast robusta coffee into the chamber.

• Good looks like: The coffee grounds are evenly distributed in the chamber.
• Common mistake: Overfilling the phin or using the wrong grind size. Avoid it by: Measuring your coffee and ensuring the grind is appropriate for a phin.

4. Lightly tamp the grounds: Place the press screen on top of the grounds and gently press it down. Do not overtighten.

• Good looks like: The press screen is snug but not overly compressed, allowing water to flow.
• Common mistake: Tamping too hard, which can restrict water flow. Avoid it by: Applying only light, even pressure.

5. Bloom the coffee: Pour about 1-2 tablespoons of hot water (around 200°F / 93°C) over the grounds, just enough to saturate them. Let it sit for 20-30 seconds.

• Good looks like: The coffee grounds expand and release CO2, indicating freshness.
• Common mistake: Skipping the bloom. Avoid it by: Always blooming to allow for even extraction and better flavor.

6. Fill with hot water: Slowly pour the remaining hot water into the phin, filling it to the top.

• Good looks like: Water is poured gently to avoid disturbing the coffee bed, and the phin is filled without overflowing.
• Common mistake: Pouring too quickly or using water that’s too hot/cold. Avoid it by: Pouring slowly and using water at the correct temperature.

7. Brew and drip: Place the lid on the phin and let the coffee slowly drip into the cup. This usually takes 4-7 minutes.

• Good looks like: The coffee drips steadily, not too fast or too slow, forming a rich, dark liquid.
• Common mistake: Rushing the drip process or impatient waiting. Avoid it by: Allowing gravity to do its work; if it’s too slow, check your grind or tamp.

8. Remove phin and stir: Once all the water has dripped through, remove the phin. Stir the hot coffee and condensed milk thoroughly.

• Good looks like: The condensed milk is fully incorporated into the coffee, creating a uniform, creamy color.
• Common mistake: Not stirring enough, leaving a layer of unmixed condensed milk. Avoid it by: Stirring until the mixture is homogenous.

9. Serve: Enjoy your Vietnamese coffee hot, or pour it over a glass full of ice for a traditional “cà phê sữa đá.”

• Good looks like: The coffee is served immediately, at its optimal temperature, whether hot or iced.
• Common mistake: Letting the coffee sit too long, causing it to cool or become diluted (if iced). Avoid it by: Serving right after preparation.

Common mistakes (and what happens if you ignore them)

Mistake	What it causes	Fix
Using regular drip coffee grind	Water passes too quickly, weak, watery coffee	Use medium-fine grind, slightly coarser than espresso.
Tamping coffee too hard	Water flow is restricted, coffee drips too slowly or not at all, over-extracted bitterness	Apply only light, even pressure to the press screen.
Using light roast or arabica beans	Lacks the characteristic strong, bold flavor; can taste sour	Opt for dark roast robusta coffee beans.
Not blooming the coffee	Uneven extraction, muted flavors, weaker brew	Pour a small amount of hot water first and let it sit for 20-30 seconds.
Water temperature too low	Under-extracted, sour, or weak coffee	Use water between 195-205°F (90-96°C).
Water temperature too high	Over-extracted, bitter, burnt-tasting coffee	Use water between 195-205°F (90-96°C).
Not pre-heating phin/cup	Coffee cools too quickly, affecting taste and temperature	Always rinse phin and cup with hot water before brewing.
Not enough condensed milk	Coffee is too bitter or strong, not the traditional sweet taste	Start with 1-2 tablespoons and adjust to your preference.
Using regular milk instead of condensed	Lacks the rich, creamy texture and sweetness; watery	Sweetened condensed milk is essential for authenticity.
Rushing the drip process	Under-extracted, weak coffee as water doesn’t have enough contact time	Allow the coffee to drip slowly, typically 4-7 minutes.

Decision rules for how do I make Vietnamese coffee

• If your coffee is dripping too fast, then your grind is likely too coarse or your tamp is too light, because water is flowing through too easily.
• If your coffee is dripping too slow or not at all, then your grind is likely too fine or your tamp is too hard, because it’s obstructing water flow.
• If your coffee tastes sour or weak, then your water temperature might be too low or your coffee is under-extracted, because insufficient heat or contact time.
• If your coffee tastes burnt or overly bitter, then your water temperature might be too high or your coffee is over-extracted, because excessive heat or contact time.
• If you’re missing the signature sweetness and richness, then you probably didn’t use sweetened condensed milk, because it’s a key ingredient.
• If your coffee cools down too quickly, then you likely skipped pre-heating your phin and cup, because cold equipment absorbs heat from the brew.
• If your coffee doesn’t have a strong aroma, then your beans might be stale or not robusta, because fresh robusta beans are very fragrant.
• If you want iced Vietnamese coffee, then brew it as usual but pour the hot concentrate over a full glass of ice, because this cools it down quickly without over-diluting.
• If you prefer less sweetness, then start with less condensed milk, because you can always add more but can’t take it away.
• If you’re having trouble with even extraction, then make sure to bloom your coffee, because it allows gases to escape and grounds to saturate evenly.

FAQ

What kind of coffee beans should I use for traditional Vietnamese coffee?

For authentic Vietnamese coffee, a dark roast robusta bean is preferred. Robusta beans have a higher caffeine content and a bolder, stronger flavor profile that stands up well to sweetened condensed milk. Many brands specifically label their coffee for Vietnamese brewing.

Can I use a regular coffee maker or pour-over for Vietnamese coffee?

While you can use other methods to brew strong coffee, it won’t be traditional Vietnamese coffee. The unique slow drip of the phin filter is essential for achieving the characteristic concentrated, rich extract that defines the drink. Other methods won’t replicate this.

How much sweetened condensed milk should I add?

The amount of sweetened condensed milk is entirely up to personal preference. A common starting point is 1 to 2 tablespoons per serving. You can adjust this in future brews to find your ideal balance of sweetness and coffee strength.

Why is my Vietnamese coffee dripping so slowly?

Slow dripping is usually due to a grind that’s too fine or coffee grounds that have been tamped too hard in the phin. This compacts the coffee bed, making it difficult for water to pass through. Try a slightly coarser grind or a lighter tamp next time.

My Vietnamese coffee tastes weak. What am I doing wrong?

Weak coffee can be caused by several factors: a grind that’s too coarse, insufficient coffee-to-water ratio, water that’s too cool, or rushing the drip process. Ensure your grind is medium-fine, use enough coffee, and allow adequate brew time.

Can I make a large batch of Vietnamese coffee?

The phin filter is designed for single servings. To make multiple servings, you would need multiple phin filters or brew them sequentially. While you could brew a strong concentrate in a French press or pour-over, it wouldn’t be the traditional phin method.

Is Vietnamese coffee always served with condensed milk?

Traditionally, Vietnamese coffee often includes sweetened condensed milk (cà phê sữa đá for iced, cà phê sữa nóng for hot). However, you can also enjoy it black (cà phê đen) if you prefer a very strong, unsweetened coffee.

What this page does NOT cover (and where to go next)

• Specific brand recommendations for phin filters or coffee beans.
• Detailed history of coffee in Vietnam.
• Advanced latte art techniques for Vietnamese coffee.
• How to roast your own coffee beans at home.
• Comparisons of Vietnamese coffee with other global coffee cultures.
• Recipes for other Vietnamese beverages or desserts.