AOAC Gluten Quantitative Validation Guidance-Round 1(Nov 2023)

If any of the matrices purchased as a flour are demonstrating unexpectedly high results, it may be 20 necessary to purchase that material in a whole grain/seed/bean form and grind it in your own lab, in 21 order to get a clean material that will give you a true estimation of cross-reactivity. 22 If you have information on the specific varietal tested, include that information in the validation report, 23 as well as including the part(s) of the material that is tested (skin, flesh, stone, pit, etc.). For a multi- 24 component matrix like pork sausage, provide all ingredients. 25