What’s in the Prologue?

• We review the factors that contribute to improved evenness of extraction.
• Important terminology that’s necessary to know for later chapters are defined.
• The variables of temperature, grind, surface area and flow are summarised.

A Dedication to Earl E. Lockhart

This advanced course requires some prior knowledge of the basic brew parameters. Before we launch into Chapter 1, the lessons in the Prologue give you an overview of the knowledge we’re assuming you’ll take into this course.