High Calorie dust like flour or sugar can be an explosive (2010)[video]

Absolutely, dust can be a huge hazard in this regard. See: https://en.wikipedia.org/wiki/Dust_explosion

This is one reason firefighters hate going to calls in situations where fine particles of highly combustible dust is common (grain elevators, etc.) - because the threat of an explosion is very high.

Farmers have known this a long time. There are specific protocols to follow when keeping a silo, to avoid explosions.

So can non-dairy creamer. When it's shipped dry, in bulk, the shipment has to be placarded as explosive.

Everything has a flash point after a certain point x.x