Chipotle (CMG) - Get Report announced on Tuesday that it has become the only national restaurant brand to use no added colors, flavors, or preservatives in its food options.

The no preservatives plan applies to all restaurants in the U.S., but does not include drinks. The company began its initiative two years ago.

"We have always used high quality ingredients and prepared them using classic cooking techniques," Chipotle Founder, Chairman and CEO Steve Ells said. "We never resorted to using added colors or flavors like many other fast food companies do simply because these industrial additives often interfere with the taste of the food."

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"However, commercially available tortillas, whether they are for us or someone else, use dough conditioners and preservatives. I've been on a quest for a better tasting tortilla for years, and we finally achieved a tortilla made the way you would make them at home, and they are simply delicious. Ultimately, all of the decisions we make about the ingredients we use are about making the very best tasting food we can."

Shares of Chipotle were higher by 2.39% to $424.87 on Tuesday afternoon.