Saturated vs semi-saturated groups
The differences between saturated and semi-saturated espresso group designs, and how they influence thermal stability and consistency.
Specialty coffee
Brew ratios: ristretto, normale, lungo
The differences between ristretto, normale, and lungo espresso shots, and how brew ratio shapes flavor and strength.
Water’s effect on flavor balance
How the mineral composition and chemistry of water influence the extraction and taste profile of brewed coffee.
Motor torque and speed
How the grinder motor's torque and rotational speed affect grinding performance, consistency, and heat generation.
Stepped vs stepless adjustment
The differences between stepped and stepless grind adjustments and how they affect dialing in espresso or other brewing methods.
Storage temperature and shelf life
This topic explains how storage temperature affects the shelf life of green coffee, the chemistry behind flavor loss, and the best practices to preserve freshness and quality.