How to Use a Vietnamese Drip Filter (Phin)

If you’ve ever craved the bold, sweet intensity of Vietnamese coffee but weren’t sure how to make it at home, the answer lies in a small metal brewer called a phin. This traditional drip filter produces a thick, rich cup using minimal equipment—no paper filters, no machines, just hot water, coffee grounds, and condensed milk. But getting the technique right isn’t always obvious.

To brew Vietnamese coffee with a phin, you’ll need: a phin filter, finely ground coffee (ideally 15g), hot water around 90°C, condensed milk, and about 3 minutes of your time. The process involves blooming the coffee, pouring water slowly, and letting it drip through—a simple yet precise ritual.

What Is a Vietnamese Drip Filter (Phin)?

The Vietnamese drip filter, or phin, is a small, portable metal brewer that originated when French drip coffee culture arrived in Vietnam during the 19th century. Unlike a French press or drip machine, the phin doesn’t use paper filters or a carafe. Instead, it sits directly atop your cup and drips brewed coffee through a single metal filter. Its compact, durable design makes it ideal for travel, and it’s especially well-suited for brewing strong, sweetened coffee—either hot or over ice.

Why Use a Phin for Coffee?

The phin produces a bold, full-bodied cup with a heavy body and intense flavour—similar to French press or Moka pot coffee, but without the sediment or pressure. Because it drips directly into your cup, there’s no loss of aroma, and the metal construction adds durability. It’s also eco-friendly, eliminating the need for paper filters. Most importantly, it’s designed to work beautifully with sweetened condensed milk, creating the signature profile of Vietnamese coffee.

How to Use a Vietnamese Phin Filter Step by Step

Brewing with a phin is straightforward but requires attention to detail. Here’s the exact method:

• What You’ll Need: Vietnamese phin filter, finely ground coffee (around 15g), condensed milk, hot water (≈90°C), a cup, and a spoon.
• Step 1: Disassemble & Prepare the Phin. Take apart the phin and remove the press plate (also called the filter disc).
• Step 2: Add Condensed Milk. Pour a small amount of condensed milk into your cup—adjust to taste.
• Step 3: Add Coffee Grounds. Add freshly ground coffee (about 15g, fine grind similar to espresso) directly into the phin’s chamber.
• Step 4: Level & Press the Coffee. Use a spoon to level the grounds, then place the press plate on top and tighten it securely. Don’t overtighten—it should be firm, not crushed.
• Step 5: Bloom the Coffee. Place the phin on your cup and pour just enough hot water (not too much) to wet all the grounds. Let it sit for about 20 seconds—this is the bloom phase.
• Step 6: Add Hot Water. After blooming, slowly pour hot water (around 90°C) into the phin until it’s nearly full. Do not overflow.
• Step 7: Wait for the Drip. Let the coffee drip through undisturbed for about 3 minutes. The slower the drip, the stronger the cup.
• Step 8: Stir & Serve. Once all the coffee has dripped through, stir the brewed coffee with the condensed milk until fully mixed. Enjoy hot, or pour over ice for a classic Vietnamese iced coffee.

Making Vietnamese Iced Coffee with a Phin

To make Vietnamese iced coffee, follow the same steps but place a few ice cubes in your cup before adding condensed milk. As the hot coffee drips onto the ice, it cools instantly while diluting slightly, resulting in a smooth, sweet, and refreshing drink. The slow extraction and thick body pair perfectly with the cold temperature and creamy sweetness of condensed milk.

Frequently Asked Questions

What grind size should I use for a Vietnamese phin filter?

Use a fine grind, similar to espresso—around the fineness of table salt. This ensures proper extraction and a slower drip time, usually around 3 minutes.

How much coffee should I use in a phin?

The standard amount is about 15g of coffee. Adjust based on your taste preference or the size of your cup, but this is the typical quantity used in most Vietnamese coffee preparations.

Do I need to use condensed milk?

No, condensed milk isn’t mandatory, but it’s traditional in Vietnamese coffee. You can brew the coffee black or with other sweeteners if preferred.

What water temperature is best for phin brewing?

Use water around 90°C (just off boil). Too hot can over-extract and bitter the cup; too cool under-extracts and results in a weak brew.

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

It typically takes about 3 minutes for the coffee to fully drip through. A slower drip often means a richer, more concentrated cup.

Can I make Vietnamese coffee without a phin?

You can try alternatives like a pour-over or French press, but the unique extraction and body of phin-brewed coffee come from its design. Using a phin is the most authentic way to replicate the traditional Vietnamese coffee experience.

Recommended FrontStreet Beans for Vietnamese Coffee

For a classic Vietnamese coffee profile, try FrontStreet Coffee’s Classic Blend, known for its rich crema and full body—perfect with condensed milk. Alternatively, the Black Cocoa Blend offers bold, smooth depth with a chocolatey edge that complements sweetened coffee. Both blends are designed for espresso and moka-style brewing, making them ideal for phin use. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.