FIRE FIGHTERS continue to work to contain a blaze at Casino's Riverina Stockfeeds on Reynolds Rd.
A NSW Fire and Rescue spokesman said crews will be working for some time to ensure no hot embers spread or start and more outbreaks.
"There is a fire in a hopper and small fires in exhaust ducting at the factory," he said.
"It will be a long slow drawn out incident, I'd imagine.
"When you are dealing with ducting and conveyor belts it takes a fair bit of time disassembling things to check that the fire hasn't spread."
Initial reports were that 350 staff had been evacuated from the factory but the spokesman said 20 staff had been confirmed as evacuated.
The spokesman said the incident had been declared a Hazmat incident which was standard for a fire in a hopper or silo.
"They are just cooling things down now and checking to make sure no fires have spread."
Nobody is understood to have been injured in the fire.