Chipotle just rolled out preservative-free tortillas last week. And they claim to be the only national restaurant chain that doesn't use added colors, flavors, or preservatives in any of its food. And this week to hammer that message home they're rewarding you with a free order of chips and guacamole if you can spot the hidden artificial ingredient on its website.
The game is aptly called "Spot the Imposter," and it's super easy. Once you find -- and click on -- the hidden additive, Chipotle will send you a mobile coupon via text message for a free order of chips and guac with the purchase of any entree. The deal is good through April 30.
The game is available to play from Monday, April 3, through Friday, April 7
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