MNN Galleries

10 eco-friendly food trucks

Sweetflow Mobile, Washington D.C.

Photo: Courtesy Sweetflow Mobile

3 of 12

Sweetflow Mobile, Washington D.C.

You won’t have to feel guilty after buying a treat from this truck. Sweetflow Mobile serves frozen yogurt made from fat-free Stonyfield Farm organic yogurt and many of the fruit and crunchy toppings are locally sourced. Plus, an eco-friendly pulley system replaces the gas-powered generator most soft-serve trucks use, reducing emissions by 80-90 percent.