Farming Food In A Freight Container

An old shipping container arrived on campus last fall. From the outside, it was an innocuous-looking, beige structure that might have fallen out of the sky. The inside, however, contains one of the most innovative farming systems in the world.

The shipping container is what is called a freight farm. Produced by Freight Farms, a company founded in 2010 and headquartered in Boston, the container is 320 square feet and contains an advanced hydroponic growing system, meaning that its plants are grown in a mineral nutrient mix instead of soil. The King’s freight farm was installed behind Atair House in November and subsequently painted by students from the Middle School. 

The goal of the freight farm is to maximize food production while minimizing water use and the distance between the farm and the site of consumption. At capacity, the freight farm can grow 3,000-5,000 maturing plants simultaneously — the same amount of food that could be grown on two acres of farmland. Yet the farm uses fewer than 10 gallons of water per day, a reduction of about 90 percent, according to Freight Farms Client Services Director David Harris.

Called the Leafy Green Machine by Freight Farms, the unit produces greens for the Dining Hall. “Right now, it’s producing spinach, kale, chard, and romaine,” says Director of Operations Ola Bseiso. While capable of growing other types of vegetables, the Leafy Green Machine is designed specifically to produce greens. And thanks to a staggered schedule, the farm will yield fresh greens every day.

Seeds are first placed under light for two weeks until they become sprouts. Then, during the seedling stage, the plants grow deep roots and begin to show leaves, taking three weeks to fully mature.

When mature, the vegetables are harvested in the morning and placed in the Dining Hall for consumption in the afternoon.

The freight farm’s lettuce will pair nicely with the surrounding crops. “On one side of the freight farm, there is a large fruit tree section — apples, peaches, and other fruits,” says Bseiso. “And to the left are around 25 soil beds with various plants. And the best part is: it’s all organic!”

Beyond its beneficial nutritional and environmental effects, the freight farm offers ample opportunities for learning.

“You can see the entire process of plant growth happening, from the seedling all the way to harvest,” says Harris.

Dima Kayed, head of the Physical and Life Sciences, says that teachers of chemistry and biology intend to incorporate the freight farm into their classes, including looking at the dynamics of plant growth, types of plants, lighting, testing water quality, and other elements.

In addition, the trajectory of Freight Farms offers a case study for entrepreneurial students: eight years ago, the freight farm was only an idea, and now it is a full-fledged, successful product with a presence in nearly 20 countries.

Harris is hopeful that King’s students will gravitate to the freight farm. “You should care where your food comes from, as it doesn’t just appear on your table or plate,” he says. “There’s an entire industry built around it. Students can now understand the food system from a sheltered, air-conditioned box.”

But it’s not just about looking at the food; it’s about eating it. So if you find yourself in the Dining Hall, grab some lettuce from the salad bar, because odds are it’s the freshest salad you will ever eat.

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