BREW GUIDE / Filter coffee
Vietnamese phin coffee
Stabilize the gravity insert and drip behaviour before using condensed milk to adjust sweetness.

Equipment and measurements
Phin filter and matching insert, sturdy heatproof glass, scale and kettle.
Amounts marked as brewed espresso describe beverage weight, not dry grounds. Keep water, milk, ice and other additions as separate measurements; final volume varies with the method.
How to make it
- Weigh 14 g coffee. Optionally add 15 g condensed milk to the serving glass, then place the filter plate and chamber securely over a compatible rim.

- Gently level the coffee and place the gravity insert on top. For a screw-down model, follow its own instructions instead of tightening it like a different brewer.

- Add about 30 g water around 91–93°C, wait roughly 45 seconds, then slowly top up to a cumulative 120 g if capacity allows. Use stages or a smaller recipe when necessary.

- Allow dripping to finish, remove the hot filter safely and stir condensed milk from the bottom. Note the first and final drips before changing grinding or sweetness.

What to adjust first
No drip: inspect blocked holes, an overly tight insert and fine grinding. Very fast weak flow: confirm dose and bed preparation before grinding finer. Excess sweetness: reduce condensed milk next time.
Tune drip behaviour before tuning sweetness
Condensed milk changes balance but does not clear a blocked brewer. Keep coffee and water fixed until dripping is reasonably repeatable, then change sweetness in a separate comparison.
Try this comparison next time
Record insert type, first-drip time and finish time using the same dose and water. Once insert placement is consistent, compare one small grind adjustment.
What to write down
Record phin size, insert design, dry coffee, input water, milk and ice separately. Input water is not identical to filtered beverage weight.
Keep learning
Coffee basics · Flavour troubleshooting
Your notes for this cup
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