Cold Brew Coffee (Slow Cold Immersion) vs. Ristretto (Restricted Espresso Shot 1:1)
Comparing 2 standards across 11 specifications. 11 key differences identified.
Cold brew coffee is prepared by steeping coarse coffee grounds in room temperature or chilled water (4–20°C) for 16–24 hours. Per 100ml concentrate, it delivers 180–220mg caffeine with 66% lower titratable acidity than hot brews.
Ristretto is a restricted extraction espresso stopping at a 1:1 to 1:1.5 ratio (18g dry dose yielding 18–22g liquid) in 18–22 seconds, extracting sweet, viscous, low-bitterness solubles with an intense 11–14% TDS.
Specification Comparison Table
11 Parameters| Parameter / Spec | ||
|---|---|---|
|
Product Class
|
Extended Cold Full Immersion Extraction | Restricted High-Intensity Espresso |
|
Brewing Water Temperature
|
4 – 20°C (39 – 68°F / Cold / Room Temp) | 90 – 93.5°C (194 – 200°F) |
|
Extraction Time
|
16 – 24 Hours | 18 – 22 Seconds |
|
Grind Size Range
|
900 – 1,200 µm (Extra Coarse) | 200 – 300 µm (Fine to Ultra-Fine) |
|
Caffeine Content (per 100ml)
|
~180 – 220 mg (Concentrate) / ~70–90mg (Diluted 1:1) mg | ~240 mg (Single 20g shot = ~50–60mg caffeine) mg |
|
Total Dissolved Solids (TDS)
|
3.5 – 5.0 % (Concentrate) % | 11.0 – 14.5 % (Maximum body and sweetness) % |
|
Standard Brew Ratio (Dose : Water)
|
1 : 5 (Concentrate) / 1 : 12 (Ready-to-drink) | — |
|
Titratable Acidity Comparison
|
50–66% lower titratable acid than hot coffee (smooth, chocolatey, low-tannin) | — |
|
Standard Brew Ratio (Dose : Yield)
|
— | 1 : 1.0 – 1 : 1.2 (18g dry coffee -> 18–22g liquid) |
|
Extraction Pressure
|
— | 9.0 Bar |
|
Extraction Yield (EY)
|
— | 14.0 – 16.5 % (Excludes late astringent tannins) % |