On Sept. 11, rubble ignited in the middle of the building, causing a flare-up; it was extinguished two hours later.
Residents called to report Friday's blaze. The township fire department was dispatched around 5 p.m., Holt said.
Two fire trucks from Delanco and one from Riverside were at the scene Friday. Smoke could be seen from Route 130.
"It's been flaring up and down all day," Holt said.
Contractors working to clear the building had heaped muck on the fire to extinguish the flare-ups earlier in the day, he said.
Neighbors of the warehouse have complained about the smell of rotten meat and the haze from the still-smoldering fire.
A company spokesman said it was working to clean up the debris and started demolition Sept. 11. Dietz & Watson also hired an environmental firm to begin an odor-control plan.
On Friday, 90 trucks hauled rotten meat and debris from the site, said Steve Aaron, a Dietz & Watson spokesman. Each truck carries 30,000 to 36,000 pounds, he said. Since Sept. 11, 350 trucks have hauled meat and debris from the site.
"Our hopeis that at some point next week, that food will be out of there," Aaron said.
The company couldn't get into the building to remove the meat and debris earlier because the solar panels on the roof had to be de-energized, Aaron said. The possibility of electrocution from the solar panels had hampered fighting the fire, Holt has said.
On Friday, the environmental company BioTriadEnvironmental Inc. of Stroudsburg, Pa., began applying an odor-neutralizing solution, composed of natural, biodegradable plant extracts diluted with water, through supply hoses and aerosol fogging nozzles, Aaron said.
"We really wanted to tackle that issue of the odor," he said.
Contact Darran Simon at 856-779-3829, firstname.lastname@example.org, or follow on Twitter @darransimon.
Inquirer staff writer David O'Reilly contributed to this article.