What's the secret to making good iced coffee?
The secret to good iced coffee is simple: start with strong coffee and chill it fast. Dilution is the enemy. Whether you're pulling a double espresso or brewing a concentrated cold brew, the coffee itself needs to be twice as intense as your normal cup, because ice and milk will cut the strength significantly.
We work with coffee drinkers across Belgium, and the single most common complaint we hear is "my iced coffee tastes watery." Nine times out of ten, the fix is straightforward: brew stronger, chill faster, and use quality beans. A single-origin with clear flavor notes, like our El Salvador Santa Ana with its velvety chocolate and citrus character, holds up beautifully over ice where a flat, generic blend simply disappears.
One more thing: never pour hot coffee directly over ice. Let it cool to room temperature first, or use the Japanese iced coffee method and brew directly onto ice with a filter dripper.
Recipe 1: Classic cold brew
Cold brew is the most forgiving iced coffee method and the one that rewards patience. The result is smooth, low-acid, and genuinely refreshing.
What you need:
- 80g coarsely ground coffee (try our Honduras Las Mercedes for sweet cherry and chocolate notes)
- 1 litre of cold water
- A large jar and a fine strainer or coffee filter
How to make it:
Combine the grounds and water in your jar. Stir gently, cover, and leave in the fridge for 12 to 18 hours. Strain through a fine mesh or paper filter into a clean bottle. This concentrate keeps for up to two weeks in the fridge.
Serve over plenty of ice, diluted 1:1 with water or milk. For a richer version, use oat milk or a splash of cream. Cold brew concentrate is also the base for several recipes below, so making a batch on Sunday sets you up for the whole week.
Grind size matters more here than in any other method. If you're unsure, our guide on how grind size affects your coffee walks you through exactly what to aim for with coarse cold brew grinds.
Recipe 2: Creamy iced latte
An iced latte is the quickest route from espresso machine to cold glass. It takes about three minutes and it's endlessly customizable.
What you need:
- 2 shots of espresso (freshly pulled)
- 150ml milk of your choice
- A tall glass full of ice
- Optional: a pump of vanilla syrup or a pinch of cinnamon
How to make it:
Pull your espresso and let it cool for two to three minutes at room temperature. Fill your glass with ice, pour the milk over, then pour the espresso on top. The espresso sinks through the milk and creates a layered effect before you stir it together.
Whole milk gives the creamiest result, but oat milk produces a naturally sweet, slightly caramel-like flavor that works brilliantly with medium-roast beans. If you're making iced lattes regularly at home and want your milk consistently chilled to the right 4°C, the Jura Cool Control milk cooler keeps milk at the ideal temperature on your countertop, so you're always ready to pour.
Recipe 3: Dalgona iced coffee
Dalgona coffee went viral for good reason: it looks dramatic, it takes four minutes to make, and the texture is genuinely unlike anything else.
What you need:
- 4 tablespoons of instant coffee
- 4 tablespoons of sugar
- 4 tablespoons of hot water
- 400ml milk
- 10 ice cubes
How to make it:
Whisk the instant coffee, sugar, and hot water together vigorously until the mixture turns thick, pale, and foamy. This takes about two to three minutes by hand or thirty seconds with an electric whisk. Fill a glass with ice and milk, then spoon the coffee foam on top. Stir before drinking.
The ratio is non-negotiable: equal parts coffee, sugar, and water. Deviate and the foam won't hold. If you want to reduce the sugar, swap half of it for a sugar-free sweetener, but keep the volume the same to maintain the foam structure.
Recipe 4: Espresso tonic
Espresso tonic is the most polarizing drink on this list and also one of the most refreshing. Bitter espresso over tonic water sounds wrong until you try it.
What you need:
- 2 shots of espresso, cooled
- 150ml good-quality tonic water (plain or citrus-flavored)
- Ice
- Optional: a slice of lemon or orange
How to make it:
Fill a glass with ice and pour the tonic water in first. Let it settle. Pour the cooled espresso slowly over the back of a spoon so it floats on top of the tonic. The layered presentation is part of the appeal, but it's equally good stirred.
The key here is espresso quality. A bright, fruity single-origin works better than a dark roast because the tonic amplifies acidity and bitterness. Our Mexico Chiapas beans with their floral acidity and vanilla notes are a natural fit for this recipe.
Recipe 5: Vietnamese iced coffee
Vietnamese iced coffee is rich, sweet, and intensely satisfying. It's a two-ingredient drink with a very specific character that comes from sweetened condensed milk.
What you need:
- 2 to 3 tablespoons of sweetened condensed milk
- 2 shots of strong espresso or 100ml of strong filter coffee, cooled
- A glass packed with ice
How to make it:
Spoon the condensed milk into the bottom of your glass. Add the ice. Pour the cooled coffee slowly over the top. Stir before drinking, or leave it layered and mix as you go.
The condensed milk does two things: it sweetens and it adds a thick, creamy body that no other ingredient replicates. Don't substitute regular milk here; the texture and sweetness will be completely different. For the coffee, a medium to dark roast with chocolate or caramel notes works best. Our Black Albert Blend, with its caramel, mocha, and toasted brioche character, was practically designed for this drink.
Which iced coffee recipe suits which occasion?
Not every recipe fits every situation. Here's how to match them:
- Cold brew: best when you plan ahead and want something to last all week, low maintenance and low acid
- Iced latte: best for mornings when you have an espresso machine and want something quick and creamy
- Dalgona: best for a weekend treat or when you want to impress someone, visually striking and fun to make
- Espresso tonic: best for afternoons when you want something lighter and more complex, works well as a pre-dinner drink
- Vietnamese iced coffee: best when you want something indulgent and dessert-like, satisfying enough to replace an afternoon snack
The best iced coffee isn't about the most elaborate recipe. It's about starting with coffee strong enough to survive ice and milk, then matching the recipe to what you actually have at home. Now that you know how each method works and where it shines, you can stop guessing and start making cold coffee that actually tastes like something. To get started with beans built for iced recipes, explore our full artisanal coffee collection and pick a roast that fits your preferred style.
Frequently asked questions
What is the best coffee for iced coffee recipes?
Medium-roast single-origin coffees work best for most iced recipes because their flavor notes survive dilution and chilling without turning flat or bitter. For cold brew, go coarse and fruity. For espresso-based drinks like iced lattes or espresso tonic, a bright, clean single-origin holds up better over ice than a dark roast, which can turn harsh when cooled. Avoid pre-ground coffee if possible, as fresh grinding preserves the aromatics that make iced coffee taste alive rather than stale.
Is iced coffee better for GERD than hot coffee?
Cold brew is generally easier on the stomach than hot-brewed iced coffee because the cold extraction process produces significantly less acid. If you have GERD or acid reflux, cold brew is the most commonly recommended iced coffee option. It's not acid-free, but the pH is measurably higher than hot-brewed coffee. Avoid adding citrus or tonic water if acidity is a concern, and skip the Vietnamese iced coffee if condensed milk aggravates your symptoms.
Can I make iced coffee without an espresso machine?
Yes. Cold brew requires no machine at all, just coffee, water, a jar, and a strainer. Strong filter coffee or Moka pot coffee also works well for iced lattes and Vietnamese iced coffee. The Dalgona recipe uses instant coffee, so no equipment is needed beyond a whisk. The only recipes that genuinely benefit from an espresso machine are the iced latte and espresso tonic, where the crema and intensity of a proper shot make a noticeable difference.
How do I stop my iced coffee from getting watery?
Brew your coffee at double strength before chilling it. The standard ratio for hot coffee is roughly 60g per litre. For iced coffee, aim for 90 to 100g per litre, or pull a double espresso shot instead of a single. You can also freeze leftover coffee into ice cubes and use those instead of water-based ice. This is the single most effective trick for keeping iced coffee tasting strong from the first sip to the last.
What are the best iced coffee flavors for summer?
Vanilla, caramel, coconut, and citrus are among the most popular summer iced coffee flavors. Vanilla pairs with almost any roast and works in both lattes and cold brew. Caramel suits darker blends with chocolate notes. Coconut works best in cold brew with oat or coconut milk as the base. Citrus, particularly orange or lemon, is the defining flavor of espresso tonic. For something more adventurous, a light floral single-origin over ice with a slice of orange is genuinely worth trying.
How long does homemade cold brew keep in the fridge?
Cold brew concentrate keeps for up to two weeks in the fridge when stored in a sealed glass bottle or jar. Diluted cold brew (already mixed with water or milk) should be consumed within three to four days. The concentrate actually improves slightly over the first two to three days as the flavors settle and mellow. Always store it cold and sealed, because exposure to air speeds up oxidation and flattens the flavor.