Phin Coffee 101: What Is a Phin & How to Brew at Home
By Lessly Vo
A phin is a small Vietnamese drip filter that sits on top of a cup and brews coffee slowly, one drop at a time. It is the tool our name comes from: Phinology is the study of the phin. This guide covers what a phin is, how it works, and how to brew a great cup at home.
What Is a Phin Filter?
A phin (pronounced "fin") is usually made of stainless steel and has three parts: a chamber that holds the grounds, a perforated insert called the press, and a lid that keeps the heat in. You place it on a glass or cup, add coffee and hot water, and let gravity do the work.
Unlike a paper-filter drip machine or a French press, a phin brews in a single slow pass. Because the water stays in contact with the grounds for several minutes, the result is a small, concentrated, full-bodied cup. That strength is why Vietnamese coffee is usually served with sweetened condensed milk or over ice.
What You Need
- ☕ A phin filter (chamber, press, and lid)
- 🫘 2-3 tablespoons of medium-coarse ground coffee
- 💧 Hot water, 195-205°F (90-96°C)
- 🥛 Sweetened condensed milk, if you like it classic (optional)
How to Brew Phin Coffee in 5 Steps
- Step 1: Set the chamber on a cup. Add condensed milk to the cup first if you want it.
- Step 2: Add the coffee to the chamber and shake it level. Set the press on top and give it a light twist. Do not pack it hard.
- Step 3: Pour a small splash of hot water over the press to bloom the grounds. Wait 20-30 seconds.
- Step 4: Fill the chamber with hot water and cover with the lid.
- Step 5: Let it drip for 4-5 minutes. Stir, then drink it hot or pour it over ice.
Pro Tip:
Warm the phin and the cup with a little hot water before you start. A cold metal filter pulls heat out of the brew and can make the coffee taste flat.
Troubleshooting Your Phin
Dripping too fast
Finished in under 3 minutes and tastes thin? Grind a little finer or screw the press down slightly more.
Dripping too slow
Water stalls or the cup tastes bitter? Grind a little coarser and loosen the press.
Frequently Asked Questions
What is a phin?
A small Vietnamese drip filter, usually stainless steel, that sits on top of a cup. Hot water drips slowly through the grounds into the cup below.
How do you use a phin filter?
Add 2-3 tablespoons of coarse coffee, set the press, bloom for 20-30 seconds, fill with water at 195-205°F (90-96°C), cover, and wait 4-5 minutes.
What grind size works best in a phin?
Medium-coarse, a little coarser than for a drip machine. Too fine and the water stalls or the coffee turns bitter. Too coarse and it tastes thin.
Why is my phin coffee dripping too fast or too slow?
Too fast usually means the grind is too coarse or the press is too loose. Too slow means the grind is too fine or the press is too tight. Adjust the grind first, then the press.
Where can I try phin coffee in San Diego?
At Phinology Coffee, 4344 Convoy St #L in the Convoy District. We are open Mon–Fri 7:30 AM to 6 PM, Sat–Sun 8 AM to 6 PM.
Want to taste it before you brew it? Visit us in Convoy District, San Diego, or order Vietnamese phin coffee online.