Actually, industrial dust that can build up inside of sugar refineries, grain elevators, sawmills, etc. can be very explosive causing massive destruction. Below is a sugar refinery in Geogia that blew up killing 14. There was not much left of the plant.That damn flammable sugar. Why are they making that stuff? (/s)
I don't think many people who live or work in the area think about this risk. I suspect most think sugar is just a benign substance.