The Art of Roasting
The Three Pillars
Light Roast
City Roast • First Crack
Characteristics
- Color: Light brown, matte surface
- Oil: No visible oil on surface
- Body: Light and crisp
- Acidity: Bright and pronounced
Flavor Profile
High acidity with fruity, floral, or herbal notes. The bean's origin characteristics shine through clearly.
Best For
Pour-over, AeroPress, and any method where you want to highlight the bean's natural flavors.
Medium Roast
Full City • Between Cracks
Characteristics
- Color: Medium brown, slight sheen
- Oil: Minimal oil spots
- Body: Balanced and smooth
- Acidity: Moderate and rounded
Flavor Profile
Balanced acidity with notes of caramel, nuts, and chocolate. Origin flavors blend with roast characteristics.
Best For
Drip coffee, French Press, and most brewing methods. The most versatile roast level.
Dark Roast
French Roast • Second Crack
Characteristics
- Color: Dark brown to black, oily surface
- Oil: Clearly visible oil coating
- Body: Heavy and bold
- Acidity: Low, sometimes bitter
Flavor Profile
Low acidity with dominant roast flavors: chocolate, smoke, and sometimes bitterness.
Best For
Espresso, Moka Pot, and methods where you want bold, consistent flavor.
The Science Behind
Chemical Transformations
As beans heat up, they undergo complex chemical reactions:
- Maillard Reaction: Creates caramel and chocolate flavors
- Caramelization: Develops sweetness and body
- Pyrolysis: Produces smoky, roasted characteristics
Physical Changes
The bean transforms physically during roasting:
- Expansion: Beans double in size
- Weight Loss: 15-20% moisture evaporates
- Oil Migration: Natural oils move to surface
The Roasting Journey
0-5 minutes: Drying Phase
Moisture evaporates, beans turn from green to yellow
5-8 minutes: Browning Phase
Maillard reactions begin, beans turn light brown
8-10 minutes: First Crack
Beans pop and expand, light roast achieved
10-12 minutes: Development
Medium roast develops, oils begin to surface
12-15 minutes: Second Crack
Dark roast achieved, oils fully visible
Perfect Pairings: Roast & Brew Method
Light Roast + Pour Over
Highlights the bean's natural acidity and origin flavors
Medium Roast + French Press
Balanced extraction brings out caramel and nutty notes
Dark Roast + Espresso
Intense extraction creates rich, bold coffee with crema
Medium-Dark + AeroPress
Versatile brewing method works well with most roast levels
Celebrating Cusco's Master Roasters
Our local roasting community brings decades of tradition and innovation to every batch.
Coming Soon: Partner Roaster Profiles
Meet the artisans behind Cusco's finest coffee beans. Learn about their techniques, traditions, and the stories that shape each roast.
Shop the Cusco roast · Brew Your Own · Introduction to Cupping