Ultra-low carb, smooth caffeine. Plain cold brew has ~0.2g net carbs per 100ml (~0.5g per 240ml cup). The long steep yields a mellow, less-bitter cup—an easy daily keto choice (just keep add-ins unsweetened).
Is Cold Brew Coffee Keto?

YOUR PORTION
How much are you having?
Scale the published reference values to your portion.
Per 100 ml (as consumed or prepared). Curated estimate; estimated values.
How this is calculated
total carbohydrate - fiber. Each published value is multiplied by your portion divided by the reference amount. No extra fiber, sugar alcohol or allulose deductions are applied here.
Grams and milliliters are not interchangeable. Household measures require a food-specific conversion; check your scale or product label.
0.2gnet carbs in your portion
- Total carbs
- 0.2g
- Fiber
- 0g
- Protein
- 0.1g
- Fat
- 0g
- Calories
- 2
Ultra-low carb, smooth caffeine. Plain cold brew has ~0.2g net carbs per 100ml (~0.5g per 240ml cup). The long steep yields a mellow, less-bitter cup—an easy daily keto choice (just keep add-ins unsweetened).
- Net carbs (100 ml)0.2g
- Protein (100 ml)0.1g
- Fat (100 ml)0g
- Keto verdictKeto-friendly
NUTRITION FACTS
Per 100 ml (as consumed or prepared)
Source: Curated estimate
Source fit: curated estimate; not an exact source match
Net-carb calculation: total carbohydrate - fiber
A USDA reference record exists, but the displayed basis or macros do not directly reproduce it, so KetoLens does not attribute these values to USDA. Check the current label for packaged products.
Nutrition record reviewed 2026-07-09. Maintained by KetoLens Team.
WHY IT'S KETO-FRIENDLY
- Ultra-low carbs: ~0.2g net per 100ml fits strict keto easily
- No sugar by default: Skip sweeteners to keep it zero-impact
- Smooth profile: Extended steep reduces bitterness vs. hot brew
- Flexible base: Accepts keto add-ins like cream or MCT oil
- Convenient batching: Make once, enjoy all week
- Stable energy: Caffeine without sugary spikes
PREPARATION SUGGESTIONS
BATCH BREWING
Use 1 part coarse grounds to 4 parts water; steep 12–24 hours, then strain and chill.
WITH CREAM
Combine 100ml cold brew with 50ml heavy cream or unsweetened almond milk.
BULLETPROOF STYLE
Blend cold brew with 1 Tbsp butter or MCT oil for a fat-fueled drink.
OVER ICE
Pour over ice; dilute concentrate 1:1–1:2 with water to taste.
STRAIGHT
Sip as a strong, unsweetened pick-me-up.
EXTENDED STORAGE
Refrigerate in a sealed bottle; best within 7–10 days (quality) and up to ~2 weeks.