ISPAM Stakeholder Panel Meeting Book 3-14-17

ISPAM GLUTEN IN OATS PROJECT

WORKING GROUP PRESENTATION

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MEASUREMENT VARIATION

• Trace amounts of gluten can be present in a sample. • The gluten in the sample is randomly distributed, but tends to be found in microscopic “flecks.” • This microscopic inhomogeneity can result in abnormally high test variation due to sampling probabilities, especially at small test portions. • Efforts to significantly reduce sample non-homogeneity through grinding have not been effective. • Lack of sample homogeneity coupled with small test portions leads to significant test variation.

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