Vietnamese Phin

The Vietnamese phin is a small metal drip filter that sits on top of your cup. You put fine coffee in its chamber, rest a press disc on top, add hot water and put the lid on. The water drips slowly through the grounds, straight into the cup, with no paper filter. It’s the everyday coffee maker of Vietnam, traditionally used with dark-roasted robusta, and it makes a strong, full-bodied cup that’s often stirred into sweetened condensed milk. Here’s how to use one, how to get the drip speed right and where it comes from.

The short version

• A metal drip filter that sits on your cup: base plate, chamber, press disc and lid.
• Slow and strong: first drips by about 2 minutes, finished by about 5.
• A good start: 2 tablespoons of fine coffee for every 4 oz of water at 90–96°C (Nguyen Coffee Supply).
• Grind fine, like sand. The press disc and grind set the speed.
• Drink it black or with condensed milk, hot or over ice.

What is a phin, and how does it work?

A phin has four parts, usually made of stainless steel or aluminium:

• Base plate: sits across the rim of the cup.
• Chamber: holds the coffee. Its floor is full of small holes, so no paper filter is needed.
• Press disc: rests on the coffee and slows the water down. Some screw down, so you can set how firmly they press; others simply rest by their own weight.
• Lid: keeps the heat in while it drips, then doubles as a saucer for the phin when you lift it off.

Because the water passes through slowly and the metal filter lets more of the coffee’s oils through than paper, you get a strong, heavy-bodied cup.

How much coffee and water should I use?

Sahra Nguyen, founder of Nguyen Coffee Supply, starts at:

	Amount
Coffee	2 tablespoons, ground fine
Water	4 oz (about 120 ml), at 90–96°C (195–205°F)
Ratio	2 tablespoons of coffee for every 4 oz of water
Timing	First drip by about 2 minutes, last drip by about 5

That suits a 4 oz phin. For a bigger phin, keep the same ratio. Like it stronger? Add a little more coffee rather than less water.

What grind size should I use?

Fine, like sand. Too fine and the phin can clog and stall; too coarse and the water runs straight through, giving a weak, sour cup.

How do you brew with a phin, step by step?

1. Heat the water to 90–96°C, just off the boil.
2. Set the base plate and chamber on your cup. For cà phê sữa, put the condensed milk in the cup first.
3. Add 2 tablespoons of fine coffee, shake it level and rest the press disc gently on top.
4. Bloom: pour about 1 oz of hot water to wet the grounds and wait 30–45 seconds.
5. Fill the chamber with the rest of the water and put the lid on.
6. Let it drip. Aim for the first drops by about 2 minutes and the last by about 5.
7. Lift it off, resting the phin on the upturned lid, and stir.

Brew mode on this page times the bloom and the drip for you.

Why is my phin dripping too fast or too slow?

Problem	Likely cause	Try
Pours straight through in a minute or two	Grind too coarse, or press too loose	Grind finer, or press a little more firmly
Hardly drips, or stops	Grind too fine, or press too tight	Grind coarser, or press more lightly
Weak and sour	Too fast, or not enough coffee	Grind finer, or add more coffee
Harsh and bitter	Too slow	Grind coarser

What can you make with a phin?

• Cà phê đen: black phin coffee, hot.
• Cà phê sữa nóng: phin coffee stirred into sweetened condensed milk, hot.
• Cà phê sữa đá: the same with condensed milk, poured over ice. Vietnamese iced coffee.
• Cà phê đá: black phin coffee over ice.

The usual explanation for the condensed milk is that fresh milk was scarce and didn’t keep well in Vietnam’s heat, so tinned condensed milk took its place.

Phin vs other brewers

	Phin	V60	French press
How it works	Slow drip through a metal filter	Pour-over through paper	Steep, then press through metal mesh
Filter	Metal, built in	Paper	Metal mesh
Grind	Fine	Medium-fine	Coarse
Makes	One small, strong cup	One cup	Several cups
Cup	Strong, heavy-bodied	Clean, bright	Heavy, full

Where does the phin come from?

• Coffee in Vietnam: most accounts say French missionaries brought coffee to Vietnam in 1857, during the colonial era.
• The phin: the name is widely said to come from the French filtre, filter. Who first made the phin, and when, isn’t documented. Some sellers link it to French drip pots like the biggin, but I haven’t found evidence for that, so treat it as a theory.
• Vietnam today: Vietnam is the world’s second-largest coffee producer, after Brazil, and grows mostly robusta. In June 2026, the US Department of Agriculture forecast 32.5 million bags for 2026/27, 31.4 million of them robusta.

How do you clean a phin?

Knock the grounds into the bin, then rinse the chamber, press and plate under hot water. If the holes clog, a soft brush clears them. Dry it before putting it away, especially an aluminium phin.

General guidance only. The metal gets hot while it brews, so lift it by the edge of the base plate and follow any instructions that came with yours.

Phin vs other brewing methods

• Vietnamese iced coffee: phin coffee and condensed milk over ice.
• Japanese iced coffee: pour-over brewed onto ice.
• Turkish coffee: another strong, traditional cup, made in a cezve.
• French press: another metal-filter brew, with more coffee at once.

Explore every metal-filter gravity brewer in the gravity chapter.