How to Use a Vietnamese Drip Filter Coffee Maker

If you’ve ever watched someone make Vietnamese coffee and wondered how it gets so thick and bold, the secret is both in the brewer and the process. The Vietnamese drip filter—also called a phin—is a small metal brewer that slowly drips strong, dark coffee straight into your cup. Unlike fast drip machines or pour-overs, the phin works with gravity and time, creating a cup that’s intense, sweet (when made with condensed milk), and deeply satisfying.

To make authentic Vietnamese coffee, you’ll need about 15 grams of medium-to-dark roasted coffee, a Vietnamese phin filter, around 200 milliliters of water heated to over 90°C, and roughly 20 milliliters of sweetened condensed milk—or to taste.

What Is a Vietnamese Drip Coffee Filter?

The Vietnamese drip filter—commonly called a phin (pronounced ‘fin’)—is a small, single-serving metal coffee brewer. Its design and extraction method are very similar to Italy’s Neapolitan flip coffee pot: both rely on gravity and the natural downward flow of hot water through ground coffee. The result is a slow, rich extraction that produces a bold, concentrated cup. The only downside? It drips slowly, which can cool your coffee. Pre-warming your cup in hot water helps maintain temperature during the brew.

Why Does Vietnamese Coffee Taste So Strong and Sweet?

Vietnamese-style coffee is known for being thick, sweet, and intense—and there are two key reasons. First, it uses a relatively large dose of coffee for the volume brewed: about 15 grams for just 200 ml of water. Second, it’s almost always served with sweetened condensed milk, which balances the bitterness and adds body. Even without milk, the slow drip through a fine-to-medium grind results in a very concentrated brew, often darker and heavier than standard filter coffee.

How to Brew Coffee With a Vietnamese Phin: Step-by-Step

Making coffee with a Vietnamese drip filter doesn’t require any special skills—just patience. Here’s how to do it using about 15 grams of medium-to-dark roast coffee, 200 ml of water at over 90°C, and around 20 ml of condensed milk (optional).

1. Warm your cup by pouring hot water into it, then discard the water.
2. Remove the top filter plate from your Vietnamese phin, and add 15 grams of medium-to-fine ground coffee (medium-to-dark roast preferred). Avoid grind sizes that are too coarse (which speeds up dripping) or too fine (which can cause over-extraction, bitterness, and clogging).
3. Reinsert the filter plate; tighten it gently—don’t force it.
4. Empty out the warming water from your cup, add about 20 ml of sweetened condensed milk if using, then place the phin on top of the cup.
5. Pour about 200 ml of hot water (over 90°C) into the phin and close the lid.
6. Wait for the coffee to fully drip through—this may take several minutes. Once brewing is complete, remove the phin, stir if you used condensed milk, and enjoy.

Common Mistakes to Avoid When Using a Vietnamese Coffee Dripper

Even though the Vietnamese phin is simple to use, a few common mistakes can ruin your brew:

• Using too coarse a grind will make the coffee drip too quickly, resulting in under-extracted and weak flavor.
• Using too fine a grind can cause over-extraction, bitterness, and excessively slow dripping—or even clog the filter.
• Overtightening the filter plate can prevent proper water flow.
• Not preheating your cup or using water below 90°C may lead to a cooler, less flavorful cup.
• Impatience: rushing the brew or shaking the phin will disrupt even extraction.

What Coffee Roast Works Best for Vietnamese Drip?

Vietnamese coffee traditionally uses dark roasted beans to highlight boldness and compatibility with condensed milk. That said, medium-to-dark roasts are ideal for balancing body and clarity. The grind should be medium-to-fine—not as fine as espresso, but finer than standard drip. This helps slow the drip rate just enough for proper extraction without over-complicating the process.

Frequently Asked Questions

How much coffee do I use in a Vietnamese phin?

You should use about 15 grams of coffee. This is the typical dose for a single serving using around 200 ml of water.

What grind size is best for a Vietnamese drip filter?

Use a medium-to-fine grind—similar to table salt. It should be finer than standard drip but not as fine as espresso. This helps control the slow, steady drip needed for proper extraction.

Can I make Vietnamese coffee without condensed milk?

Yes. While condensed milk is traditional, you can brew the coffee without it. The result will be strong and bold, and you can adjust sweetness or serve it black if preferred.

Why is my Vietnamese phin dripping too fast or too slow?

If it drips too fast, your grind is likely too coarse. If it drips too slowly or not at all, your grind may be too fine, or the filter plate might be overtightened. Adjust grind size or loosen the filter slightly.

What temperature water should I use for Vietnamese drip coffee?

Use water heated to over 90°C. This ensures proper extraction without being so hot as to scorch the grounds.

Do I need to preheat my cup when making Vietnamese coffee?

Yes. Pouring hot water into your cup to warm it first, then discarding that water, helps keep your coffee warmer during the slow drip process.

Recommended FrontStreet Coffee Beans for Vietnamese Drip

For making traditional Vietnamese-style coffee, a medium-to-dark roast with bold, syrupy body works best. FrontStreet Coffee’s Classic Blend is designed for espresso and moka-style brewers, offering full-bodied richness and excellent crema potential—perfect for balancing condensed milk. Alternatively, their Black Cocoa Blend is 100% Arabica with smooth, intense flavours and great value, ideal if you want depth without harshness. Both deliver the body and roast level suited for slow-dripped Vietnamese cups. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.