Device lets you discover allergens and other harmful ingredients before you've eaten them

Knowing what's in your food before you eat it is extremely important, especially if you have an allergy to contend with. TellSpec is a new device that makes it easy to know exactly what's in your food  just by scanning the item in question, regardless of if you're in a restaurant or supermarket. The gadget sends a list of ingredients and nutritional information to a companion smartphone app, which makes it easy to evaluate your food before you've put it in your mouth.

TellSpec is effectively a miniature spectrometer – a device that can analyze materials by measuring properties of light – which combined with a unique algorithm can tell you the allergens, chemicals, nutrients, calories, and ingredients in your food. This aspect of the device could make it a literal life-saver for users who need to watch for allergens in their food, which can often be omitted from packaging altogether.

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