SCA Authorized Trainer (AST) and Cafe Operations Consultant with 12 years of experience in high-volume coffee bars. She is an expert in espresso extraction theory, equipment maintenance, and barista workflow efficiency.
Sarah Jenkins is a highly respected coffee professional and SCA Authorized Trainer who has managed flagship cafes in London and New York. Her technical mastery covers the physics of espresso extraction, water chemistry for brewing, and the intricacies of grinder particle distribution. Sarah consults for independent cafe owners on equipment selection—from PID-controlled espresso machines to precision brewers—and staff training. Her writing breaks down the variables of brewing, offering scientific yet practical guides on dialing in shots, milk texturing mechanics, and machine maintenance to prevent scale and pressure issues. She bridges the gap between engineering concepts and the daily ritual of brewing.