Toxic substances are poisonous and, therefore, hazardous. Not all hazardous substances are toxic. For example, they may be non-toxic but inflammable, explosive or dangerous in some other way.
Unless something odd has been added to it, flour shouldn't be toxic. However, poor storage methods can turn the stuff into a potentially explosive substance, and that's a hazard that has to be borne in mind. Explosions in grain mills can kill. The linked Wiki article contains an example. A more recent lethal example occurred in Bremen, Germany, in the late 1970s.
Toxic substances are poisonous and, therefore, hazardous. Not all hazardous substances are toxic. For example, they may be non-toxic but inflammable, explosive or dangerous in some other way.<>Unless something odd has been added to it, flour shouldn't be toxic. However, poor storage methods can turn the stuff into a potentially explosive substance, and that's a hazard that has to be borne in mind. Explosions in grain mills can kill. The linked Wiki article contains an example. A more recent lethal example occurred in Bremen, Germany, in the late 1970s.
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