Hauling food-grade loads with a pneumatic trailer is one of the most profitable opportunities available for owner operators today. These trailers have airtight seals which help ensure that your cargo arrives at its destination in perfect condition every time while also allowing you to transport heavier loads than would be possible with traditional tankers. On average, an owner operator can expect to make anywhere from $1 – $2 per mile when transporting food-grade materials with a pneumatic trailer in today’s market—making it one of the best ways for truckers out there looking to maximize their earnings!