How to Make Vietnamese Coffee with a Phin Filter

In Vietnam, coffee isn’t just a drink—it’s a daily ritual, enjoyed casually and affordably at home or on the street. Whether you’re in Hanoi or Ho Chi Minh City, you’ll find locals sipping slow-dripped coffee made with a small metal brewer that drops one rich drop at a time. But what is that device, and how does it create such a distinctive cup?

The answer is the Vietnamese phin filter—a simple, single-serving drip brewer that produces a bold, concentrated coffee. It takes around 10 minutes to brew, uses finely ground coffee, and is often sweetened with condensed milk. Here’s exactly how it works.

What Is a Vietnamese Phin Coffee Filter?

The phin (or “drip filter”) is a small metal brewer used exclusively for making Vietnamese-style coffee. Unlike espresso machines or pour-over cones, it doesn’t use pressure or complex techniques. Instead, it relies on gravity to slowly extract coffee through a bed of finely ground beans, drop by drop, directly into your cup—usually with sweetened condensed milk.

Why Vietnamese Coffee Uses Condensed Milk

Vietnamese coffee is almost always prepared with a generous layer of sweetened condensed milk at the bottom of the cup. This practice began partly due to the limited availability of fresh milk in the past, but it stuck because the richness of condensed milk balances the strong, dark roast typically used. The result is a thick, sweet, and intense coffee experience—especially refreshing over ice.

How to Use a Phin Filter: Step-by-Step

To make authentic Vietnamese coffee using a phin, follow these steps:

• What You Need: A phin filter, coarse to medium-fine Vietnamese coffee grounds (about 15g), condensed milk, hot water (around 90°C), a cup, and a spoon.
• Step 1: Prepare Your Cup
  Pour 1–2 tablespoons of condensed milk into the bottom of your cup. Adjust to taste.
• Step 2: Assemble the Phin
  Take apart the phin and remove the press plate. Add about 15g of finely ground Vietnamese coffee into the chamber. Level the grounds with a spoon, then place and tighten the press plate securely.
• Step 3: Place Over Cup & Bloom
  Set the phin directly on your cup. Add just enough hot water (not boiling, around 90°C) to wet all the grounds—a technique called “blooming.” Let it sit for about 20 seconds. This helps release gases and prepares the coffee for even extraction.
• Step 4: Pour and Brew
  After blooming, fill the phin with hot water until full. Do not press down on the coffee during this step.
• Step 5: Wait 10 Minutes
  Leave the phin undisturbed. The coffee will drip slowly—usually taking around 10 minutes total. Resist the urge to speed it up. A slower drip means better extraction.
• Step 6: Stir and Serve
  Once brewing is complete, stir the coffee and condensed milk together. Serve hot, or pour over ice for a refreshing iced version.

Common Mistakes to Avoid

To get the best results, avoid these common issues:

• Using too coarse a grind (should be similar to table salt or finer)
• Over-tightening the press plate (can restrict flow too much)
• Pouring water too quickly or unevenly
• Not allowing enough time for the full 10-minute drip
• Brewing with water that’s too hot (aim for around 90°C)

Frequently Asked Questions

What is a phin filter and where does it come from?

A phin filter is a small metal single-serve coffee dripper originating from Vietnam. It’s designed to brew one cup at a time through gravity-fed drip extraction, producing a strong and concentrated coffee.

Do you need special coffee beans for a phin filter?

No special beans are required, but traditional Vietnamese coffee uses a dark roasted local bean. For best results, use a fine to medium-fine grind, similar to table salt.

How much coffee should I use in a phin?

The article specifies using about 15g of coffee, which you can measure with two coffee scoops. Adjust to taste or cup size as needed.

What temperature water should I use for phin brewing?

Use water heated to around 90°C. Avoid boiling water, as it can over-extract and bitter the coffee.

How long does it take to brew coffee with a phin?

Total brew time is approximately 10 minutes. This includes a 20-second bloom and around 9–10 minutes of dripping.

Can I make iced Vietnamese coffee with a phin?

Yes. Brew the coffee using the phin as described, then pour it over ice. Many people also mix it with condensed milk before pouring over ice.

Best FrontStreet Coffee Beans for Phin Brewing

For Vietnamese-style coffee with a phin filter, try FrontStreet Coffee’s Classic Blend—an approachable medium-dark roast with chocolatey and nutty notes that complement condensed milk beautifully. If you prefer something deeper, their Black Cocoa Blend offers bold cocoa and roasted undertones perfect for balancing sweetness. Both roasts work well with the fine grind and slow extraction of the phin. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.