Food Allergen Detector

This invention would allow somebody with allergy problems to eat out without requesting a allergen menu or risking eating something they shouldn't. I got this Idea because I am allergic to casein, a protein in milk, and it is very hard to eat at restaurants or friend's houses because of a possible reaction. For some people, this is a life threatening problem and not just a minor annoyance. My solution to this problem is to detect allergens in food. The detector would have buttons on the front that would be used to select the allergen to be tested, and the amount would be displayed on a digital scale. The test results would be displayed as: -A very small amount in the air -None in the food sample -Traces in the food samples -Don’t eat this (large amounts) The machine, which is about the side of a cell phone, would be easy to use and carry. Food samples that you wanted to test would be placed in a small vial would attach to the side. If readings where having problems, the machine could be reset by testing a pure sample and an empty container.