Jimmy John’s, one of America’s fastest-growing sandwich franchises, is adding a new bread to its lineup for the first time in over 20 years. The new 9-Grain Wheat Sub features a blend of wheat, rye, flaxseed, quinoa, millet, oats, barley, amaranth and spelt, as well as honey, coconut and molasses. It is available with any Jimmy John’s sandwich at no extra charge.

The addition is part of Jimmy John’s Freak Yeah campaign, which celebrates the extreme lengths to which their employees go to make the perfect sandwich. To introduce the new 9-Grain Wheat Sub, the freaks at Jimmy John’s opened a pop-up store made from a grain bin in a wheat field in Binford, North Dakota—a farming community known for its vast wheat fields.

“The new 9-Grain Wheat Sub has a taste so inspired, we introduced it in the place that inspired it,” says Jimmy John’s chief marketing officer John Shea.

Local farmers and residents were among the first to taste the new sandwiches.

“Over the last year, we have been listening to our customers to better understand exactly what they want and how we can offer additional high-quality products,” explains Shea. “The new 9-Grain Wheat Sub is a direct result of those conversations.”

Like the traditional French bread, the new 9-Grain Wheat Sub will be freshly baked in store every day. It is the latest in a series of new products that Jimmy John’s has rolled out this year, including the popular Kickin’ Ranch, the 16” Giant Sandwich, and a sliced version of Jimmy John’s World-Famous pickles, all of which can be applied to the new 9-Grain Wheat Sub.

Founded in 1983 by Jimmy John Liautaud in Charleston, Illinois, Jimmy John’s has built its reputation on serving up fast and fresh sandwiches in communities across the country and is one of the fastest growing franchises in the U.S. with nearly 2,800 Jimmy John’s locations across 43 states.