MIAMI (CBS4)- Miami-based Burger King wants consumers to try its new French- fry formula, and to entice fry lovers their giving it away free on Friday.

The company is promoting the new fries on by giving away $1 portions for free as part of their “Free Fries Friday” promotion. No purchase necessary, while supplies last, the company said.

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The second largest burger chain introduced the new recipe in its more than 7,000 North American Restaurants.

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This is the first recipe change for burger king since 1998.

The new fries will cost the same, but are thicker and have less sodium. They also have a coating designed to make them crispier and stay hotter longer, the company said.

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“A thicker cut of potato gives each bite more fluffy, potato flavor on the inside and crispy, golden-brown deliciousness on the outside,” the company stated in a press release.