Espresso Extraction: Measurement and Mastery is the highly technical follow-up to The Professional Barista's Handbook. Baristi who have mastered Scott's earlier work will enjoy this compact ebook's new material and numerous original ideas. EEMM examines topics such as pressure profiling, portafilter basket design, and advanced use of the coffee refractometer. Scott also discusses the current popular topic of how to produce delicious coffee at extractions as high as 23%, an idea he pioneered in 2010.
