Coffee Drink

How to Make a Cold Brew Latte with Prepared Concentrate

Build a cold brew latte with 100 g prepared concentrate, 150 g milk and 100 g ice. Get a clear serving ratio, safe handling and troubleshooting.

By Jason HarrisPublished Updated 5 min read
Cold brew latte with milk swirling through chilled coffee concentrate over ice
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What Is a Cold Brew Latte?

A cold brew latte combines prepared cold brew concentrate with cold milk and ice. This serving recipe starts with 100 g concentrate, 150 g milk and 100 g ice, giving a 1:1.5 concentrate-to-milk ratio by mass. It assumes the concentrate has already been brewed, filtered and refrigerated safely.

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Key Takeaways

  • 1This serving recipe begins with prepared cold-brew concentrate; brew and chill the concentrate before starting the three-minute assembly.
  • 2Start with 100 g concentrate, 150 g milk and 100 g ice.
  • 3Concentrate strength varies, so taste before changing milk and concentrate together.
  • 4Cold brew is made without a heat step, making clean equipment, prompt filtration and refrigeration important.

Cold Brew Latte at a Glance

Concentrate
100 g
Cold Milk
150 g
Ice
100 g
Assembly
3 Minutes

Cold Brew Latte vs. Regular Iced Latte

A cold brew latte uses coffee extracted with cool or room-temperature water over an extended period. A regular iced latte uses freshly brewed espresso. Both contain coffee, milk and ice, but the extraction method changes concentration, aroma and texture.

Cold brew is often described as smooth, but it is not automatically low in acid, low in caffeine or mild. Coffee species, roast, brew ratio, water, contact time and dilution all affect the finished drink.

Refrigerated cold brew concentrate beside milk and roasted coffee beans
The serving recipe begins with prepared concentrate. Brew and filter the concentrate separately before assembling the latte.

Cold Brew Latte Serving Recipe

For comparable results, use a concentrate made from a documented recipe. This site's medium-strength house starting point is about 1:6 dry coffee to brewing water by input mass; the cold-brew method guide explains the full batch. Stronger 1:4 to 1:5 concentrates are also common. If your concentrate was designed to drink straight, begin with less milk than shown here and adjust after tasting.

Recipe Snapshot

  • Yield: 1 cold brew latte
  • Prep time: 3 minutes
  • Total time: 3 minutes
  • Glass: 400-450 ml
  • Serving ratio: 1 part prepared concentrate to 1.5 parts milk by mass

Ingredients

  • 100 g prepared, refrigerated cold brew concentrate
  • 150 g cold milk
  • 100 g ice

Equipment

  • Scale
  • 400-450 ml glass
  • Long spoon

Method

  1. Confirm that the cold brew concentrate and milk are properly refrigerated.
  2. Add 100 g ice to a 400-450 ml glass.
  3. Pour 100 g cold brew concentrate over the ice.
  4. Add 150 g cold milk.
  5. Stir until the color and temperature are even, then serve immediately.

How to Prepare the Concentrate

Use the cold brew method guide for the batch process, filtration and brewing variables. The concentrate should be filtered before this drink is assembled; grounds left in the liquid continue to affect texture and flavor.

Prepare, filter and chill the concentrate as a separate batch. The three-minute serving time begins only after that concentrate is ready, so it does not include the batch's long steeping time.

Adjusting the Concentrate-to-Milk Ratio

Coffee Reference TableScrollable table

This table scrolls horizontally on smaller screens.

Coffee Reference Table
Prepared ConcentrateCold MilkRatioResult
100 g100 g1:1Strong and coffee-forward
100 g150 g1:1.5Balanced starting point
100 g200 g1:2Mild and milk-forward

These ratios work only as relative adjustments for the same concentrate. A concentrate brewed at 1:4 and one brewed at 1:8 are not interchangeable just because both are called cold brew concentrate.

Choosing Milk and Ice

Whole milk produces a round body; two-percent milk is lighter; barista-style oat or soy drinks can work well when their flavor suits the concentrate. Check the best milk for coffee guide for texture and allergen considerations.

Use fresh, fully frozen ice. Wet or partially melted cubes weaken the first sip. Larger cubes generally melt more slowly, but the glass, room temperature and serving time also matter.

Safe Cold Brew Handling

Cold brew has no heat step that would reduce microbial contamination. Use clean, food-safe equipment; keep the vessel covered; filter promptly; and refrigerate the concentrate at 4 C (40 F) or colder. Do not rely on one universal shelf-life claim: water quality, sanitation, formulation, packaging and storage all affect safety and quality.

The Canadian Food Inspection Agency has evaluated bacterial pathogens in cold-brewed coffee and emphasizes the relevance of process and storage controls. Commercial producers should follow applicable local food-safety rules rather than treating a home recipe as a validated process.

Cold Brew Latte Troubleshooting

Brew Method TroubleshootingScrollable table

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Brew Method Troubleshooting
ProblemLikely CauseFix
Too weakReady-to-drink cold brew used as concentrateReduce milk or use a documented concentrate recipe
Too strongConcentrate is more intense than expectedIncrease milk in 25 g steps
WateryWet ice or long holding timeUse fully frozen ice and serve promptly
Chalky or grittyIncomplete filtrationFilter through a finer medium before assembly
Flat aromaOld concentrate or stale coffeeBrew a fresh batch with recently roasted coffee
Milk separatesProduct instability or acidity contrastTry a barista-style product and keep all ingredients cold

Calories, Caffeine and Allergens

Milk choice drives most of the calorie total. If this recipe is made with 150 g whole milk, the milk contributes approximately 92 calories using the USDA whole-milk reference. That is the milk contribution, not a complete drink total: the prepared concentrate is not standardized by recovered batch yield on this page. Use the chosen milk and sweetener labels when an exact finished value matters.

Caffeine cannot be calculated from the drink's color, concentrate volume or final serving size. Bean species, dry coffee dose, extraction and dilution all matter. A strong-tasting concentrate is not automatically a precise indicator of caffeine.

Dairy milk is a major allergen in the United States. Plant-based products may contain soy or tree nuts, and shared cafe equipment can introduce cross-contact.

Common Questions

What is a cold brew latte?
It is prepared cold brew concentrate combined with cold milk and ice. It differs from an iced latte, which uses freshly brewed espresso.
What is a good cold brew concentrate-to-milk ratio?
Start with 1 part prepared concentrate to 1.5 parts milk by mass, then adjust for the concentrate's actual strength.
Can I use ready-to-drink cold brew?
Yes, but it is usually less concentrated. Begin with less milk and taste before diluting further.
How long does a cold brew latte take?
Assembly takes about three minutes when the concentrate is already brewed, filtered and refrigerated. The separate concentrate batch takes much longer.
Is cold brew latte less acidic?
It may taste smoother, but acidity depends on coffee, roast, brew ratio, time and dilution. It is not a guaranteed low-acid drink.
How much caffeine is in a cold brew latte?
There is no reliable universal number. Coffee species, dose, extraction, concentrate strength and dilution all change the result.

Bottom Line

Treat the cold brew latte as a serving recipe built from a known concentrate. Start with 100 g concentrate, 150 g milk and 100 g ice, keep the concentrate refrigerated, and adjust the milk only after the mixed drink has been tasted.

Sources and Further Reading

  • National Coffee Association

    Cold Brew Coffee

    Cold-brew method, concentrate ratio and steeping context.

  • Canadian Food Inspection Agency

    Bacterial Pathogens in Cold-Brewed Coffee

    Government testing report and food-safety context for cold-brewed coffee.

  • US Department of Agriculture FoodData Central

    Whole Milk Nutrition

    Reference values used for the stated milk calorie contribution.

  • US Food and Drug Administration

    Food Allergies

    Current US allergen labeling and cross-contact context.

  • National Coffee Association

    Espresso

    Reference for distinguishing espresso extraction from cold brew preparation.