Certified Reference Materials and Testing Cleanliness in Coffee Analysis

The chapter delves into the meticulous measurements and testing processes of a coffee reference material, emphasizing the issues of nickel contamination and the importance of certified materials for regulatory purposes. It discusses the sterilization methods involved using gamma rays for cleanliness and accuracy in testing, particularly regarding elements like mercury. Additional topics include spiking mercury, cost comparisons, and the detailed process of maintaining and creating Green Coffee Certified Reference Materials.