Posts Tagged “HaulProduce”
When hauling the more perishable produce items such as strawberries, knowing your reefer unit, maintaining proper temperature and taking a pulp temperature at shipping point becomes even more critical. Doing things right results in delivering a better product to your customers, as well as reducing claims and load rejections.
These points are among some important findings in a study released last year, Comparison of Pallet Cover Systems to Maintain Strawberry Fruit Quality During Transport. As the title indicates, the study compares modified air controlled strawberry shipments using carbon dioxide (CO2).
Following up on that report, HaulProduce.com had an extensive interview with Rich Macleod of TransFresh Corp. of Salinas, whose product Tectrol came out looking pretty darn good when compared with competing companies offering controlled atmosphere bags covering palletized loads of strawberries.
The project was a combined effort of the University of California, Davis and the University of Florida in conjunction with the USDA.
“What this (study) demonstrates is when you put a bag over the pallet, you are going to get some in-transit warming,” Macleod observes. “It doesn’t matter whether it is a Tectrol (application) or somebody else’s bag because the warming is about the same for all of them.”
Where Tectrol shined in the study was the quality of the berries upon arrival after the cross country hauls from California to the east coast.
But back to the issue of in-transit warming. Rich points out when a palletized load is entirely bagged, the driver has to account for warming when adjusting the refrigeration unit set points accordingly at a colder temperature than if the load were “naked.”
He says, “I believe you can run a fully bagged Tectrol load (of strawberries) at 30 degrees F. if your (reefer) unit is well calibrated and your unit was built within the past four years.”
However, realistically Macleod knows most drivers prefer a 36-degree F. setting. As they become more familar with these type of loads they find out one can drop the setting to 34 or even 32 degrees.
“They (drivers) should not have issues with warmer product, if it is bagged. And they should not have any issues with frozen product. There are a number of drivers that have been incredibly successful handling Tectrol loads at 32 degrees F., but they know their units inside out and have them calibrated. They know what the floors are and the coldest temperatures that unit will be. Thirty-two degrees is a reasonable compromise.”
Macleod stressed that even if the fruit has been properly pre-cooled, carriers have to realize those bagged pallets will increase the temperature.
In fact the study itself points out in shipments with non covered pallets, the clamshell packaged strawberries remained at 32 to 35 degrees F. However, pallets covered with bags resulted in the temperature increase of three to four degrees by the time it arrived at destination.
“The rise in temperature during shipments indicate the trailers were unable to maintain the recommended 32 degrees F….” the study states.
What can a driver do if the pallets are already covered with CO2 filled bags upon arrival at the dock?
Although it is too late for a visual inspection of what is being loaded by the driver, Macleod says, “a well run (shipping) company should allow the driver to take a pulp temperature and they (shipper) should provide tape to reseal that hole (made by the driver to take the pulp temperature). It is a common practice and shippers respect that.”
(This is Part 2 0f 5, featuring an interview with Rich Macleod, vice president, pallet division North America for TransFresh Corp., Salinas, CA. He has been with company since 1976, and has a masters degree in post harvest science from the University of California, Davis.)
It’s often observed you can haul onions on practically anything and driver Pelvis Bates of Newberry, SC is proof. HaulProduce.com met Pelvis several weeks ago as he was unstrapping a flatbed trailer with a load of onions.
He had delivered a load of steel from North Carolina to San Antonio. From there he deadheaded to south Texas where he picked up the onions around 10 p.m. on a Tuesday and was preparing to have them unloaded on the Atlanta State Farmers Market on the following Thursday afternoon.
His onion load was grossing 71,000 pounds, with the product on pallets on a 48-foot Great Dane flatbed. He was driving an International Pro Star Premium.
Pelvis drives for Senn Freight Lines Inc. of Augusta, GA, a company he says is owned by two brothers running 102 trucks.
This was the 45-year-old trucker’s first produce load in his relatively short career in trucking.
“They (shipper) told me to leave the front and back of the load open (with the rest of the load covered by strap held tarps) so the air could flow through it. This was to help prevent the onions from going bad,” he said.
Before entering trucking three years ago, Pelvis worked for a screen printing company. When that business folded, he received a severance pay and used some of the money to enroll in truck driving school.
His first job in trucking was with Swift Transportation pulling dry vans. He has been with Senn Freight about a year.
As Pelvis was unstrapping his load after the 1,300-mile haul, he says this is the first job he has had pulling a flatbed trailer.
“It is extra work unstringing the straps and and removing the tarps. When I first started doing this it took me two hours to strap a load. It now takes me about 45 minutes to an hour. That’s a lot of strapping. These tarps weigh 180 pounds each. If it’s 100 degress out here, that is hard work,” states the 45-year-old.
Pelvis says one of the best things about trucking is it affords the opportunity to see a lot of the country. Becoming an owner operator has crossed his mind, but he quickly adds, “it’s too expensive. I don’t see how those guys do it.”