A phin has no buttons and no settings, which means the brew lives or dies on a handful of small decisions: how much coffee, how it’s ground, how you pour. Get those right and the phin is one of the most forgiving brewers there is. Here’s the whole routine.
Add the coffee and level it
Put 20–25 g of medium-ground coffee into the phin chamber (about 4 tablespoons for a standard 4 oz phin). Give the phin a gentle shake to level the bed — don’t tamp it. Rest the gravity press on top so it sits flat.
Bloom for 30–40 seconds
Pour just enough hot water (92–96°C, just off the boil) to wet all the grounds — around 25–30 ml. Wait 30–40 seconds. The grounds swell and settle, which is what sets up an even, steady drip.
Fill the chamber
Pour the rest of your hot water in slowly, up to the top of the chamber, and put the lid on to hold the heat. Don’t stir and don’t press down on the filter.
Let it drip — about 5 minutes
A healthy phin drips steadily, roughly one drop per second. The full brew takes 4–6 minutes. Faster than 3 minutes means the grind was too coarse; slower than 7 means too fine or over-compacted.
Stir and serve
When the dripping stops, lift the phin onto its overturned lid. Stir well — especially if there’s condensed milk waiting at the bottom — then drink it hot, or pour over a full glass of ice.
The two mistakes that ruin first brews
Skipping the bloom. Pouring all the water at once floats the grounds, channels the water, and gives you a fast, thin, sour cup. Those 30–40 seconds of waiting are doing real work.
Grinding too fine. Espresso-fine coffee packs into a paste under the press and the drip slows to nothing. If your phin stops dripping mid-brew, that’s almost always why. Aim for medium — coarser than pour-over, finer than French press.
How much coffee and water, exactly?
Phin coffee runs about 1 part coffee to 5 parts water — three times stronger than drip coffee, on purpose. For a standard 4 oz phin that’s 20–25 g of coffee and 100–125 ml of water. Brewing over ice? Go stronger, closer to 1:4, so the melt doesn’t wash the cup out — the cà phê sữa đá guide covers that.