Coffee Drink

Blended Iced Coffee with Coffee Ice Cubes

Make blended iced coffee with frozen brewed-coffee cubes for a smooth, coffee-forward slush. Exact weights, blender safety, variations and fixes.

By Mara EllisonPublished Updated 5 min read
Frozen coffee cubes, chilled brewed coffee and milk blending into iced coffee slush
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What Is Blended Iced Coffee?

Blended iced coffee is a coffee-forward frozen drink made by blending chilled brewed coffee with frozen coffee cubes, milk and optional sweetener. Freezing brewed coffee instead of plain water preserves more coffee flavor as the drink melts.

Our house recipe starts with one 20 g coffee to 300 g water filter batch. Retain 225 g brewed coffee, freeze 150 g as cubes, chill 75 g, then blend both with 75 g milk and 20 g simple syrup.

Key Takeaways

  • 1Coffee ice cubes make this recipe distinct from a plain-ice café frappé and reduce flavor dilution.
  • 2Brew one measured batch, then divide the finished coffee into 150 g for freezing and 75 g for chilling.
  • 3The baseline contains no ice cream and no plain ice, so it remains a coffee-forward slush rather than a milkshake.
  • 4The full house serving is approximately 87 calories before whipped cream, sauces or other toppings.
  • 5Freeze the coffee cubes fully and use only a blender approved for crushing frozen ingredients.

Blended Iced Coffee at a Glance

Coffee cubes
150 g
Chilled coffee
75 g
Milk
75 g
Simple syrup
20 g
Texture
Coffee slush
Calories
About 87

The measured house formula creates a 320 g blender load and takes about 8 hours 30 minutes, almost all of it unattended freezing time. The finished drink should be briefly spoonable but still pour from the blender jar.

How to Make Blended Iced Coffee

Ingredients

  • 20 g ground coffee, matched to the chosen filter brewer
  • 300 g brew water
  • 75 g cold whole milk
  • 20 g chilled 1:1 simple syrup

After brewing, weigh the liquid coffee. If output exceeds 225 g, weigh 225 g for the recipe and reserve the excess. If output is below 225 g, do not top it up with water: scale the frozen coffee, chilled coffee, milk and syrup to the actual output, or brew enough additional coffee to reach 225 g.

Method

  1. Brew 20 g coffee with 300 g water using a filter method you can repeat. Weigh the finished coffee, then follow the over- or under-yield protocol above rather than correcting the output with plain water.
  2. Cool the coffee promptly. Weigh 150 g into an ice-cube tray and refrigerate the remaining 75 g in a covered container.
  3. Freeze the coffee cubes until solid, usually about 8 hours depending on tray size and freezer performance.
  4. Weigh 150 g frozen coffee cubes, 75 g chilled brewed coffee, 75 g cold milk and 20 g chilled simple syrup.
  5. Confirm that the blender is approved for frozen cubes. Load the ingredients in the order its manual recommends and stay below the fill line.
  6. Blend on an approved frozen-drink setting for about 20 seconds. Inspect, then blend for up to 5 seconds more only if permitted.
  7. Pour into a chilled glass and serve immediately.
Blended iced coffee topped with optional whipped cream and chocolate
Whipped cream and chocolate are an optional serving variation. They are not part of the measured baseline recipe or its nutrition estimate.

Why Coffee Ice Cubes Work

Plain ice contributes water as it melts. Coffee ice cubes contribute brewed coffee, so the drink keeps a stronger coffee identity during the first stage of melting. They do not prevent dilution entirely: the cubes still contain mostly water, and every frozen drink becomes looser as it warms.

The liquid coffee helps the blender circulate the frozen cubes. Milk adds body, while simple syrup sweetens without leaving undissolved sugar crystals in the cold drink.

Blended Iced Coffee vs. Frappé and Milkshake

Coffee Reference TableScrollable table

This table scrolls horizontally on smaller screens.

Coffee Reference Table
DrinkFrozen componentRichnessMain identity
Blended iced coffeeFrozen brewed-coffee cubesLight to moderateCoffee-forward slush
Blended coffee frappéPlain iceModerateEspresso, milk and syrup café drink
Greek frappéIce added after foamingLightFoamy soluble instant coffee
Coffee milkshakeIce creamHighFrozen dairy dessert with coffee
Coffee granitaEntire sweetened coffee baseLightFork-scraped spoonable crystals

Cold brew is not a direct gram-for-gram substitute unless its strength is known. A concentrate can overpower the milk, while ready-to-drink cold brew may produce a weaker cube. Start with the measured filter batch before adapting the formula.

Calories and Nutrition

The full 320 g house recipe is estimated at approximately 87 calories.

Coffee Reference Table
Coffee Reference Table
NutrientEstimated amount
Calories87
Carbohydrate13.8 g
Total sugar13.8 g
Added sugar10.0 g
Protein2.6 g
Fat2.5 g
Saturated fat1.4 g
Fiber0 g
Sodium37 mg

The total-sugar estimate includes both milk lactose and added syrup sugar, and is part of the carbohydrate total rather than an additional amount. Ingredient brands and coffee-solids retention vary, so use package labels when an exact figure matters. Optional whipped cream and chocolate shown in the variation image are not included.

Caffeine Planning Context

As a generic brewed-coffee planning proxy, USDA entries around 30 to 44 mg caffeine per 100 g would place 225 g of brewed coffee at roughly 68 to 99 mg. This is not a measurement of the house batch, and bean species, blend and extraction can put it outside that span. Milk, syrup and freezing change concentration or texture, not the caffeine already extracted.

Use manufacturer data for a packaged brewed coffee, or a laboratory-tested product when an exact limit matters. Decaffeinated coffee works with the same freezing and blending method.

Troubleshooting Blended Iced Coffee

Shot Adjustment GuideScrollable table

This table scrolls horizontally on smaller screens.

Shot Adjustment Guide
ProblemCheck firstPractical adjustment
Blender will not circulateAppliance permits frozen cubes and load order is correctIf the manual permits, add 15 g more chilled brewed coffee
Drink is thinCubes were fully solid and liquid ingredients were coldRecheck the 150 g cubes and 75 g coffee measurements
Coffee tastes bitterBrewed coffee already tasted bitter before freezingCorrect the brew; blending cannot repair overextraction or a harsh roast
Coffee tastes weakThe 20:300 brew input and 225 g retained output were followedAvoid plain ice and excess milk; use fresher coffee next time
Ice pieces remainCube size and blender setting match the manualUse the approved cube size or frozen-drink program
Drink becomes wateryIt has been standingServe immediately; melting is normal

Variations That Preserve the Formula

  • Less sweet: Reduce simple syrup from 20 g to 10 g. The drink will be slightly firmer because there is less liquid sugar.
  • Dairy-free: Replace the 75 g milk with the same mass of a coffee-friendly plant beverage and calculate nutrition from its label.
  • Black coffee slush: Omit the milk and replace it with 75 g additional chilled brewed coffee. Expect a sharper, icier texture.
  • Decaf: Use decaffeinated coffee for both the cubes and chilled portion.

Do not add ice cream and still call the result this baseline recipe. Ice cream moves the drink into coffee milkshake territory and requires a new nutrition calculation.

Common Blended Iced Coffee Questions

Why use coffee ice cubes instead of regular ice?
Coffee cubes preserve more coffee flavor as they melt, while plain ice contributes only water.
Can I make the cubes with cold brew?
Yes, but cold-brew strength varies. A concentrate and a ready-to-drink cold brew are not interchangeable, so adjust only after making the measured filter version.
How long do coffee ice cubes take to freeze?
Allow about 8 hours, depending on tray size and freezer performance. The cubes should be fully solid before blending.
Can I make it without milk?
Yes. Replace the 75 g milk with 75 g additional chilled brewed coffee for a black coffee slush.
Can I make blended iced coffee without sugar?
Yes. Omit the syrup. The drink will be less sweet and may feel slightly firmer or icier.
Is blended iced coffee the same as a Frappuccino?
No. Frappuccino is a Starbucks trademark and product family. This is a generic measured recipe built around frozen brewed-coffee cubes.
Can I prepare it ahead?
Prepare and freeze the coffee cubes ahead, but blend the drink immediately before serving.
Can I use decaf coffee?
Yes. Use decaffeinated coffee for the entire brew batch and keep all weights unchanged.

Bottom Line

Blended iced coffee earns its own place by using coffee as both liquid and ice. Brew a repeatable 20:300 filter batch, retain 225 g, freeze 150 g and chill 75 g, then blend with 75 g milk and 20 g syrup. The result is a coffee-forward slush that is distinct from a plain-ice frappé, a foamy Greek frappé and an ice-cream coffee milkshake.