McDonalds | San Pablo Ave Oakland CA | french fries | gluten | 2015 Aug 8

* Disclaimer:  This is only a test of a sample; and accordingly, it is not a guarantee as to whether the tested food contains the tested substance.

Restaurant:  McDonalds, 6623 San Pablo Ave, Oakland CA 
Food:  french fries
Results:  negative for gluten to 5 PPM
Date:  2015 August 8
Notes:  The negative result is based on the test kit's instructions to wait no more than 10 minutes for the result. However, about 10 minutes later, the result showed indications of a positive test (a faint red line) - as shown in the second photo below. Per the email appended below, the test kit company's representative states that this late result indicates that there is some gluten, but below the 5 PPM threshold. 

Test Kit:  Glutentox
Tester:  Ryan Alvarez-Cohen

McDonalds_Fries_5_PPM_150809.JPG

 

---------- Forwarded message ----------
From: Emily Kaufman <emilyk@emportllc.com>
Date: Fri, Jun 26, 2015 at 10:03 AM
Subject: Re: Late Red Line on ELISA Test
To: Ryan Alvarez-Cohen 

Hi Ryan,

You’ve got it exactly right! 
If the line is showing up at 20 or 30 minutes it’s almost always an indication that there’s *some* amount of gluten in the sample - but not enough for the kit to accurately quantify. 
The 10 minute mark is what counts for determining whether the sample has met the test threshold of not - marks that show up later usually mean there’s a ppm or two floating around somewhere in the sample.  
Best,
Emily


Emily Kaufman  

Emport, LLC
More safe food, more happy people

Quality control and allergen test kits

866.509.4482 • 718.717.2353

emilyk@emportllc.com

emportllc.com • glutentox.com

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