Bulletproof Coffee
Also butter coffee, keto coffee
Coffee blended with butter and MCT oil into a creamy emulsion, a 2009 US diet-culture drink. Butter in coffee is older in Singapore and Ethiopia.
SpecialtyServed hotFrom United States
- Volume
- 270ml9.1 US fl oz
- Espresso
- 0shots
- Caffeine
- 96mgderived, USDA FDC
- Glass
- Mug350 ml
The build
Watch it made, step by step- Brewed coffee240 ml89%
- Unsalted grass-fed butter15 ml6%
- MCT oil or coconut oil15 ml6%
- Volume
- 270ml
- Caffeine
- 96mg
- Espresso
- 0shots
Scales every component together, so the ratio holds; caffeine scales with the coffee.
Coffee blended with butter and MCT oil until emulsified; marketed as a breakfast replacement on ketogenic diets. Health claims are the company's and are not evaluated here.
Caffeine
Derivedin a 270 ml bulletproof coffee
USDA FoodData Central SR Legacy caffeine per 100 g scaled to the coffee volume in components, assuming 1 g per ml. FDC 171890 (Beverages, coffee, brewed, prepared with tap water) 40.0 mg/100 g x 240 ml.
USDA FoodData Central record 171890 · read 2026-10-26
A derived figure: the reference food's caffeine per 100 g scaled to the coffee in this build. Real cups vary with the coffee, the dose and the shot.
Variants by country
2| Name | Country | How it differs |
|---|---|---|
| kopi gu you | Singapore | Older kopitiam butter coffee. |
| buna with butter | Ethiopia | Ethiopian coffee sometimes taken with butter. |
History
Wikidata records 2009 as inception, Dave Asprey as founder and classes it as an instance of butter coffee.
United States, 2009; a trademarked recipe inspired by Tibetan butter tea.
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