I have a question about testing for egg allergen. We are packaging a bun that has an egg wash applied and then baked. I have been using the neogen test kit for egg. I am not able to detect any residue of egg on the packing line before cleaning? Someone @ neogen said that baking causes the egg protein to become "denatured"? We still do a full cleaning and test after cleaning. If there is not a positive result before cleaning, does that mean that the test kit is not able to detect egg after it has been baked. Or is the baking process making the egg coating on the bun hard enough that there is no transfer of allergens to the packaging equipment? If I test the equipment that was used before the bake, I get a positive result from the test.
My biggest concern is that all of the egg is removed during cleaning and that I can prove that fact.