Refreshing Vietnamese Cold Coffee Recipe
Quick Answer
- Use a Vietnamese coffee filter (phin).
- Grind your coffee medium-fine.
- Use dark roast beans, traditionally robusta.
- Sweeten generously with sweetened condensed milk.
- Brew hot water over the grounds into the milk.
- Stir vigorously with ice.
- Adjust sweetness to your liking.
Who This Is For
- Anyone craving a bold, sweet coffee kick.
- Coffee drinkers who love condensed milk.
- Home baristas looking to try a unique brewing method.
What to Check First
Brewer Type and Filter Type
You’re using a Vietnamese coffee filter, or phin. It’s a metal dripper that sits right on top of your glass. Make sure it’s clean and all the parts are there: the chamber, the press, and the lid. A clean phin means a clean taste.
To get started with this recipe, you’ll need a Vietnamese coffee filter, also known as a phin. This traditional metal dripper is essential for achieving the authentic brew. You can find a reliable one here.
- This Vietnamese Coffee Filter is made in Vietnam out of HIGH QUALITY stainless steel
- The Ca Phe Phin is 8 oz. Enjoy with traditional ground coffee such as by Trung Nguyen
- The GRAVITY INSERT on this Vietnamese Coffee Filter is easier than the screw down type
- This Viet filter comes with a LIFETIME WARRANTY and is DISHWASHER SAFE. Satisfaction guaranteed!
- Slow dripper brews a perfect hot or iced coffee (cafe sua da) with this Vietnamese Coffee Filter
Water Quality and Temperature
Good water makes good coffee. If your tap water tastes off, use filtered water. For the phin, you want hot water, just off the boil. Aim for around 195-205°F. Too hot can scorch the grounds, too cool and you won’t extract much flavor.
Grind Size and Coffee Freshness
For a phin, a medium-fine grind is usually best. It should feel like table salt. Too fine and it’ll clog; too coarse and the water will rush through. Freshly roasted and ground beans are king. Coffee loses its punch fast after grinding.
Coffee-to-Water Ratio
A good starting point is about 1-2 tablespoons of coffee grounds per serving. You’ll adjust this based on how strong you like it. The phin is pretty forgiving, but don’t overfill it.
Cleanliness/Descale Status
This is huge. If your phin or kettle has mineral buildup, your coffee will taste bitter or metallic. Give your phin a good scrub. If you’ve got a lot of buildup, it might be time to descale your kettle. A clean setup is a happy setup.
Step-by-Step: How to Make Vietnamese Cold Coffee
Here’s the breakdown on how to make Vietnamese cold coffee, the right way.
1. Prep your glass: Place 1-2 tablespoons of sweetened condensed milk at the bottom of your heatproof glass.
- Good looks like: A nice layer of creamy, sweet milk ready to be infused.
- Common mistake: Forgetting to put the milk in first. You’ll end up with a mess trying to add it later.
2. Assemble the phin: Place the brewing chamber of your phin on top of the glass, over the condensed milk.
- Good looks like: The phin sitting snugly on the rim of the glass.
- Common mistake: Not seating the phin properly. It could slip, and nobody wants hot coffee spilled.
3. Add coffee grounds: Spoon your medium-fine ground coffee into the phin chamber. Don’t pack it down.
- Good looks like: The chamber is about three-quarters full, with loose grounds.
- Common mistake: Tamping the coffee down hard. This will slow the drip to a crawl or stop it altogether.
4. Insert the press: Place the screw-down press (or the gravity press) on top of the coffee grounds. Screw it down gently until it just touches the grounds.
- Good looks like: The press is lightly seated, not crushing the coffee.
- Common mistake: Overtightening the press. Again, this chokes the flow.
5. Bloom the coffee: Pour just a little hot water (about 1 oz) over the press. Let it sit for 30 seconds.
- Good looks like: The grounds absorb the water and puff up a bit. This is called blooming.
- Common mistake: Skipping the bloom. You’ll miss out on releasing trapped gases and getting a more even extraction.
6. Fill the phin: Slowly fill the phin chamber with hot water, up to just below the rim.
- Good looks like: The phin is full of hot water, ready to start dripping.
- Common mistake: Pouring too fast. This can agitate the grounds and lead to uneven extraction.
7. Wait for the drip: Place the lid on the phin and let the coffee brew. It should drip slowly, about one drop every second or two.
- Good looks like: A steady, slow drip into the glass, creating a dark, rich coffee concentrate.
- Common mistake: Getting impatient. If it’s dripping too fast, your grind might be too coarse or the press too loose. If it’s too slow, check the press and grind.
8. Brew until done: Let the phin drip until all the water has passed through. This usually takes 4-5 minutes.
- Good looks like: The phin is empty, and you have a small amount of dark coffee concentrate mixed with the condensed milk.
- Common mistake: Removing the phin too early. You won’t get all the delicious coffee out.
9. Add ice: Fill a separate glass with ice cubes.
- Good looks like: A glass packed with ice.
- Common mistake: Not using enough ice. Your coffee won’t get cold enough.
10. Combine and stir: Pour the coffee and condensed milk mixture over the ice. Stir vigorously until everything is well combined and chilled.
- Good looks like: The condensed milk and coffee are fully blended into a uniform, creamy, iced beverage.
- Common mistake: Not stirring enough. You’ll have pockets of unmixed milk or coffee.
11. Taste and adjust: Take a sip. If it’s not sweet enough, add a little more condensed milk. Too strong? Add a splash of water or more ice.
- Good looks like: A perfectly balanced, refreshing drink that hits your sweet spot.
- Common mistake: Not tasting. You might end up with a drink that’s too sweet or not sweet enough for your preference.
Common Mistakes (and What Happens If You Ignore Them)
| Mistake | What it Causes | Fix |
|---|---|---|
| Using stale coffee | Flat, dull, uninspired flavor | Use freshly roasted and ground beans. |
| Grind too fine | Slow drip, over-extraction, bitter taste | Coarsen the grind slightly. Check the press isn’t too tight. |
| Grind too coarse | Fast drip, under-extraction, weak flavor | Fine the grind slightly. Ensure the press is snug. |
| Not blooming the coffee | Uneven extraction, gassy taste | Always let the grounds sit with a little water for 30 seconds. |
| Packing the grounds too tight | Coffee won’t drip, bitter taste | Use a lighter touch. Don’t tamp down the coffee. |
| Using cold water | Poor extraction, weak coffee | Use hot water, just off the boil (195-205°F). |
| Not stirring well with ice | Unmixed layers, inconsistent sweetness and flavor | Stir vigorously until fully blended and chilled. |
| Using a dirty phin | Off-flavors, metallic or bitter notes | Clean your phin thoroughly after each use. Descale if needed. |
| Not enough condensed milk | Coffee is too bitter, not sweet enough | Add more condensed milk until it’s to your taste. |
| Too much condensed milk | Overly sweet, cloying taste | Add a splash of water or more ice to dilute. |
| Rushing the brewing process | Under-extraction, weak coffee | Be patient. Let the phin drip completely. |
Decision Rules
- If your coffee drips too fast, then slightly coarsen your grind because it’s likely too fine.
- If your coffee is bitter, then check your grind size and ensure you didn’t pack the grounds too tightly.
- If your coffee tastes weak, then use more coffee grounds or a finer grind.
- If the water won’t drip through, then loosen the press or coarsen your grind.
- If your coffee isn’t sweet enough, then add more sweetened condensed milk.
- If your coffee is too sweet, then add more ice or a tiny splash of water.
- If your phin is clogged, then check the press and the grind size.
- If your coffee tastes metallic, then clean your phin or descale your kettle.
- If you want a bolder flavor, then use a darker roast or slightly more coffee grounds.
- If your coffee is too acidic, then try a darker roast or a slightly coarser grind.
- If you’re in a hurry, then pre-grind your beans, but know it won’t be as fresh.
FAQ
What kind of coffee beans should I use?
Traditionally, Vietnamese coffee uses robusta beans, often dark roasted. They offer a bold, chocolatey flavor with a strong kick. You can also use arabica or a blend if you prefer a smoother taste, but dark roasts work best.
Can I use a different type of coffee filter?
While a phin is traditional, you could technically make a strong coffee concentrate with other methods like a Moka pot or AeroPress and then mix it with condensed milk and ice. However, it won’t be the authentic Vietnamese cold coffee experience.
How much condensed milk should I use?
This is entirely up to your preference. A common starting point is 1-2 tablespoons per serving, but some people love it super sweet and use more. Taste and adjust until it’s perfect for you.
Why is my coffee dripping so slowly?
This usually means your grind is too fine, or you’ve packed the coffee grounds too tightly in the phin. Try loosening the press or using a slightly coarser grind next time.
How can I make it less sweet?
If it’s too sweet, don’t despair. You can add more ice to dilute it, or a splash of plain water. For future brews, simply start with less condensed milk and add more as needed.
Is it okay to use regular milk instead of condensed milk?
No, regular milk won’t give you that signature rich, sweet flavor. Sweetened condensed milk is key to authentic Vietnamese cold coffee. It’s what provides the sweetness and creamy texture.
How long does it take to brew?
The actual brewing time with the phin is usually around 4-5 minutes. Add in the prep time for assembling the phin and adding ice, and you’re looking at about 5-10 minutes total.
What if I don’t have a heatproof glass?
You can brew the coffee concentrate into a small bowl or mug first, then add the condensed milk, stir, and pour that mixture over ice in a regular glass. Just be careful with the hot liquid.
What This Page Does Not Cover (And Where to Go Next)
- Detailed history of Vietnamese coffee culture.
- Specific brand recommendations for phin filters or coffee beans.
- Advanced techniques for latte art with Vietnamese coffee.
- Recipes for Vietnamese desserts that pair well with coffee.
- How to roast your own coffee beans for this recipe.
