Article Index › Hot Water: Measuring Water Activity in High-End, Specialty Green Coffee, Part 1 of 2 Image 1 of 1 Hot Water: Measuring Water Activity in High-End, Specialty Green Coffee, Part 1 of 2 $0.00 By Ian FretheimIssue 61: January | February 2014 Quantity: Add To Cart Added! By Ian FretheimIssue 61: January | February 2014