How Much Caffeine is in a Starbucks Iced Coffee?

During hot summer days, one of the most popular caffeinated beverages is iced coffee. And where can you get some of the best iced coffees?Of course, Starbucks!

This coffee shop comes with iced coffee offerings. However, did you know that each has a specific caffeine amount? Keep reading to learn how much caffeine is in your favorite Starbucks Iced Coffee!

The Caffeine Content of Starbucks Iced Coffee

Starbucks is not only famous for offering hot beverages but also cold options. Their cold brew coffee often comes with low calories and caffeine content. However, iced coffee has higher caffeine content with more calories and fat.

For example, iced coffee has different caffeine content depending on the cup size: Tall (12 oz) contains 120 mg of caffeine, Grande (16 oz) contains 165 mg of caffeine, Venti (24 oz) contains 235 mg of caffeine, and Trenta (31 oz) contains 285 mg of caffeine.

Are you curious about Starbucks’ most caffeinated cold beverage? Well, it is the Trenta Starbucks Cold Brew that has 360 mg of caffeine. It is even possible to order a Trenta coffee blend containing 340 mg of caffeine.

If you prefer an iced coffee, perfect for a trip or party, you can opt for a Starbucks Grande Cup (16 fl oz). It contains only 205 mg of caffeine and has a 50% dilution with water, compensating for 200 mg of caffeine in every 200-ml cold brew alongside a significant coffee-to-water ratio.

Another Starbucks iced coffee with a high caffeine content is the Doubleshot. It has 300 mg of caffeine and originally contained five espresso shots.

How to Make Starbuck’s Iced Coffee at Home?

If you love Starbucks Iced Coffee like me, there is an easy and practical way to enjoy it in the comfort of your home. Plus, you do not need to be a professional barista to enjoy every cup. 

Here are the items and ingredients you will need:

  • Coffee Maker 
  • Half & Half
  • 1 pound bag ground coffee
  • Pitcher for 1 gallon of liquid (plastic or glass)
  • Boiling Water 
  • Vanilla ice cream
  • Measuring Cup 
  • Sugar 

Bottle of 1 liter with pump

First, you have to put one cup of ground coffee into the coffee maker filter. You can use less or more strength when brewing the coffee, depending on your preference. The next step is to fill the coffee pot with eight cups of filtered water and pour it into the reservoir. Then, start brewing. After completing the brewing method, pour the brewed coffee into a one-gallon beverage pitcher. Then, add ice to it and serve.

If you want to sweeten your iced coffee, you can make a classic syrup from scratch. All you need to do is bring one cup of water to a boil in a medium-sized pot. Next is to add two cups of sugar. Gently stir the mixture until the water is almost clear and the sugar is completely dissolved. Ensure not to boil the mixture too long because it thickens and crystallizes.

Does Starbucks Iced Coffee Have More Caffeine?

When compared to Starbucks Iced Coffee with Milk, the iced coffee contains more caffeine. Check out the comparison table below.

Starbucks Iced CoffeeStarbucks Iced Coffee with Milk
Tall – 120 mg caffeineTall – 90 mg caffeine
Grande – 165 mg caffeineGrande – 125 mg caffeine
Venti – 235 mg caffeineVenti – 170 mg caffeine
Trenta – 285 mg caffeineTrenta – 195 mg caffeine

You may also wonder whether Starbucks iced coffee has more caffeine than hot coffee and vice versa. A study reveals a slight difference between caffeine levels throughout the temperature or roast, and that hot coffee comes with more caffeine than light or cold-brewed coffee.

Does Iced Coffee Have More Caffeine Than Lattes?

The main difference between iced coffee and lattes is the milk ratio. For example, iced coffee is almost made of milk, while iced coffee comes with little to no milk. As for the coffee, iced coffee has brewed coffee, while an iced latte has a shot of espresso.

When it comes to caffeine content, espresso contains more caffeine compared to brewed coffee. In short, iced lattes come with more caffeine than iced coffee. On the other hand, it still depends on the drink’s cup size.

How much caffeine is in a 16-ounce iced coffee from Starbucks?

If the Starbucks Iced Coffee’s serving size is 16 ounces (473 mL), it usually contains 165 mg of caffeine. The bigger the cup is, the more caffeine content it has.

What factors influence the caffeine content of iced coffee?

When determining the caffeine content of iced coffee, there are several factors to be considered, such as:

  • Amount of ice
  • Brew length 
  • Brew strength 
  • The quality of coffee 
  • Addition of milk or other additives 

On the other hand, the caffeine content of iced coffee also depends on the cup size and brand.

Does Iced Coffee Have More Caffeine than Cold Brew?

Iced coffee often contains more caffeine than cold brew. It is worth noting that an iced coffee quickly becomes diluted since it is just a regular hot coffee served over ice. For such a thing, an equal amount of iced coffee will have less caffeine than brewed coffee because it is diluted.

Is iced coffee better than iced lattes?

The answer depends on what is being put in the iced coffee or iced latte, like whether you put whipped cream on top of the type of sweetener. For example, coffee syrups like vanilla, hazelnut, etc., are added to iced coffee, which adds more sugar than regular coffee over ice. Furthermore, adding whipped cream to an iced latte adds more fat than if it only had milk and espresso. No matter how much you enjoy experimenting with cream and sugar, you have to consume it in moderation.


There you have it! Surely, the next time you order a cup of Starbucks Iced Coffee or make your own at home, you will be aware of its caffeine content. If you want to take a break from the high caffeine content of hot coffee, you can opt for iced coffee.

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