That would need to be in an actual refer I'd think. Unless they are just shuttling it around the packing plant.
Those are called Gaylords, their heavy gauge cardboard boxes on pallets. They put all kinds of things in them, from watermelons to recyclables.
Language has changed. If you sang a gay song in the say 1890's that meant you were having a happy song. Nothing to do whatsoever with orientation. The last time I came across the Gaylord used as a name would be one of the Smoky and Bandit movies. I must admit it was a rather badly built episode involving a mountie and his wife with a horde of throw away rental cars.
Are meat and potatoes allowed to be transported in the same van? What about cross contamination? I also hope you washed out real well, nobody likes a steak marinated in rancid melon juice.
I used to haul watermelons on a flatbed covered with straw and protected by a hundred $ plywood side kit, now they put them in Gaylords and stuff em in a reefer.
I suppose you could run meat and potato but would require a old style bulkhead and a older trailer that has a seperate cooling unit in the rear because you will be running two seperate temps. There is no point. Potatos by themselves is a righteous load put into the reefer directly from a pile on the ground. (That should make you really clean those #### things after store bought... Russets in particular...)