Shot of Starbucks Espresso
Caffeine
75 mg
Note: Starbucks Blonde Espresso contains slightly more caffeine than the Signature Roast due to its lighter roast profile, which preserves more caffeine. A Doppio doubles both the volume and caffeine, making it one of the most concentrated coffee options on the menu.
| Attribute | Value |
|---|---|
| Caffeine Level | High |
| Serving Size | 1 fl oz |
| Serving Size (ml) | 30 ml |
| Sugar | 0 g |
| Calories | 5 kcal |
| Caffeine per fl oz | 75 mg/fl oz |
Starbucks espresso is the foundation of many of the brand’s most popular drinks — from lattes and cappuccinos to Americanos and macchiatos. Served in small, concentrated portions, espresso delivers a rich flavor and a quick caffeine boost.
What is Starbucks Espresso?
Espresso is a concentrated coffee brewed by forcing hot water through finely ground coffee under high pressure. At Starbucks, espresso is available in different roasts, each influencing both flavor and caffeine content.
Key characteristics include:
- Signature Espresso Roast – Rich, caramel-like flavor with balanced acidity.
- Blonde Espresso Roast – Lighter roast with a smoother, subtly sweet taste.
- Doppio (Double Shot) – Two shots of espresso for a stronger caffeine hit.
- Customizable – Can be enjoyed solo or added to other drinks.
- Consistent Size – Each shot is about 1 fl oz (30 ml).
This variety allows customers to choose between boldness, smoothness, or sheer caffeine power.
Caffeine in a Single Shot (Signature Espresso)
The Signature Espresso Roast is Starbucks’ standard espresso, used in most espresso-based drinks unless otherwise specified.
Caffeine content:
- Serving Size: 1 fl oz (30 ml)
- Total Caffeine: 75 mg
- Caffeine per fl oz: 75 mg/fl oz
- Flavor Profile: Rich, bold, with caramel notes
- Best For: Traditional espresso lovers
A single shot of Signature Espresso offers a quick, concentrated caffeine boost — perfect for a morning pick-me-up or an afternoon recharge.
Caffeine in a Single Shot (Blonde Espresso)
Blonde Espresso is a lighter roast that retains slightly more caffeine than the Signature Roast, while offering a smoother, less bitter taste.
Caffeine content:
- Serving Size: 1 fl oz (30 ml)
- Total Caffeine: 85 mg
- Caffeine per fl oz: 85 mg/fl oz
- Flavor Profile: Light, smooth, subtly sweet
- Best For: Those who prefer a gentler flavor but higher caffeine
The Blonde Espresso is ideal for coffee drinkers who want a softer taste without sacrificing caffeine strength.
Caffeine in a Double Espresso (Doppio)
A Doppio is simply two shots of espresso served together, doubling both the volume and the caffeine.
Caffeine content:
- Serving Size: 2 fl oz (60 ml)
- Total Caffeine (Signature): 150 mg
- Total Caffeine (Blonde): 170 mg
- Caffeine per fl oz: 75–85 mg/fl oz
- Best For: Strong coffee drinkers or those needing a bigger boost
The Doppio is a favorite for those who want a more intense espresso experience or need sustained energy.
Nutritional Facts at a Glance (Plain Espresso)
Espresso is naturally low in calories, making it a great choice for those who want caffeine without added sugars or fats.
- Calories (Single Shot): 5 kcal
- Total Fat: 0 g
- Sodium: 0 mg
- Total Carbohydrates: 0 g
- Sugars: 0 g
- Protein: 0 g
- Caffeine (Single Shot): 75–85 mg
- Caffeine (Double Shot): 150–170 mg
Whether you choose Signature or Blonde, single or double, Starbucks espresso delivers a concentrated caffeine punch in a small, flavorful package.