Espresso Coffee: The Science of Quality by Illy and Vaini
Espresso Coffee: The Science of Quality is by Rinantonio Viani of Nestle Research Laboratories in Switzerland and Andreas Illy of Illycafe and Nestle. This is the hardcover, rewritten Second Edition of the famous Espresso Coffee: The Chemistry of Quality. Famous? Well, among home roasters it is, because there are just too many "coffee recipe" and hokey espresso cookbooks out there ... and this book is 180 degrees opposite.