For the first time in 13 years of day and night use, a food-grade grinding machine at Aloha Medicinals didn't work properly, resulting in a ductwork fire that caused an estimated $45,000 in damage. But the exact problem with the grinder, used to process mushrooms, remains unknown.
The Tuesday evening fire was contained within the ductwork, part of a dust collection system that utilized flammable paper filters, and firefighters had to tear the system apart to put out the blaze.
"It took 40 minutes to tear everything apart to get it put out," Battalion Chief Eric Bero said.
The grinding …