51�Թ�

While consumers can also attempt to heat-treat raw flour at home, this isn't recommended because the flour may not be spread thinly enough to kill all of the microorganisms.

She signed her name on the bid sheet to become a heat-treat operator, even though no woman had ever lasted in that department before.

Heat-treat operators were an elite group, like samurai warriors and Navy SEALs.

Heat-treat operators earned $25 an hour, more money than she’d ever earned in her life.

She flirted with the union president and wore revealing shirts into the heat-treat department.