Pos/Neg Controls for Matrix Validation
GlutenTox Pro Controls consists of two powders in matching vials. The negative powder has been extensively tested and will always contain no detectable gluten. The positive powder will contain more than 40ppm gluten.
You can test the control materials for gluten just as you would any flour, powder, or fine crumb. Read our informative article on using Positive/Negative controls in your quality control plan.
Orders will be shipped within 2 business days of your order via UPS Ground. If expedited service is required, please contact us to confirm availability.
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If shipping to a Canadian address, please visit glutentox.net.