Acidity sweetness

SCA Coffee Skills Program modules

SCA Coffee Skills Program modules

An overview of the Specialty Coffee Association (SCA) Coffee Skills Program (CSP), its structure, and the key modules that support professional coffee careers.

Ristretto, normale, lungo targets

Ristretto, normale, lungo targets

The differences between ristretto, normale, and lungo espresso shots, including their target brew ratios, extraction styles, and flavor outcomes.

Open research questions in coffee science

Open research questions in coffee science

The unresolved questions in coffee science that researchers, baristas, and roasters continue to explore—spanning physics, chemistry, and sensory analysis.

Response surface methodology (RSM)

Response surface methodology (RSM)

How Response Surface Methodology (RSM) is applied in coffee research to optimize brewing and roasting by modeling variable interactions.

Shelf-life testing protocols

Shelf-life testing protocols

How roasters and researchers establish shelf-life testing protocols to evaluate roasted coffee freshness, flavor retention, and packaging performance.

Body, viscosity, and colloids

Body, viscosity, and colloids

How body in coffee is perceived, the role of viscosity and colloidal particles, and how processing and brewing influence tactile sensations.