The Flour Power Road Trip

A Rivian R1T powered the cross-country journey of a 4,000-pound stone mill

By Rivian

August 28^th, 2025

The Gear Tunnel of the R1T has become a treasured storage space for many things while on the road, from sandy beach blankets to muddy shoes. But on this journey, it served as a cozy cabin for wheat stalks that are notoriously messy.

Seeds of an Idea

The wheat stalks were precious cargo of Honoré Farm and Mill, a California-based nonprofit organization championing heirloom wheat, regenerative farming, and whole grain education. In early summer, the Honoré team came to Rivian in search of an all-electric vehicle that could support a bold mission: hauling a 4,000-pound, custom-built stone mill from Vermont to its farm in the San Francisco Bay Area. More than just a journey to transport the stone mill, the Honoré team set out to inspire people to celebrate the roots of food, starting with flour. Driving an R1T with the stonemill in tow, the Honoré team made eight stops across the country to promote the importance of local grain economies through hands-on demos that covered heirloom wheat and regenerative farming. At Rivian, building community is core to our DNA, so we were honored to provide an R1T for the journey. With its 11,000-pound towing capacity* and a suite of sensors that detect weight and aerodynamics to calculate range and charging stops, the vehicle’s design is tailored to support journeys as important as this one.

"What started as a need to move our new stone mill across the country became something greater, a journey that embodied the same regenerative principles we practice in our fields.”

—Elizabeth DeRuff, Agricultural Chaplain, Honoré Farm and Mill

The All-Electric Journey

The journey began in early August at New American Stone Mills in Morrisville, Vermont, where the custom 48" mill was loaded into the trailer and hitched to the back of the R1T to set off to the Culinary Institute of America (CIA) in Hyde Park, New York. While at the iconic CIA, the students showed a deep curiosity for developing recipes using heirloom grains, which set a positive tone for the long journey ahead. The team continued the East Coast leg of the journey, stopping at First Bloom Corner Store in Bloomville, New York, a farming community where knowledgeable locals champion heirloom grains.

During this early part of the journey, Rivian’s newly re-imagined in-vehicle Energy app quickly became a trusted tool. With a 4,000-pound mill and 2,000-pound trailer, conserving energy was critical. The data provided in the app helped the team understand where energy was being used and how much could be saved along the way. The Midwest leg of the trip found the team at Zingerman’s Bakehouse in Ann Arbor, Michigan, and Skáld Bakery in St. Louis, Missouri. At the latter, people lined up to learn how to thresh and winnow wheat by hand and experience a milling demonstration, an incredibly heart-warming way to engage with the local community.

Home Stretch

Moxie Bread Co. in Boulder, Colorado, was the first West Coast stop, followed by a special visit to Rivian’s Denver space. There, the team enjoyed both the hands-on wheat education and delicious rugelach with nutella and walnuts baked by Moxie. Wild Shaped Bakery in Ogden, Utah, was up next, where baker and owner Chase Campbell is exploring heritage grains and how the smallest differences, such as seasonal temperatures, can make a difference in taste. Following their stop in Ogden, Utah, the team finally made it to the stone mill’s new home state of California, where they received a ton of love and support from local fans at Jane/Marin. Everyone gathered outside around the truck and trailer on a perfect, blue-sky summer day and enjoyed delicious Hourani sandwich loaves and sourdough boules that the Jane team baked. The overwhelming hometown support was the perfect send-off for the team’s final push. After 3,845 miles, the stone mill made it to its new home at Honoré Farm and Mill in Marin California, ready to continue the important work of cultivating heritage grains.

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*Towing capacity is 11,000 lbs. using weight-distributing hitch and 5,000 lbs. using standard hitch. Actual vehicle capability will depend on selected options and trim.