Froster

A froster and a cake sealer had repeated attacks of dermatitis on returning to their work, although the cause could not be ascertained.

Source: wiktionary

Julie was a froster, the glamour job at the factory. She wore her cute white hat cocked at a jaunty angle while working a big white bag of frosting, twisting it rapidly in her hands to create the various designs on top of the gâteaux.

Source: wiktionary

To standardize his rapid-freeze process, Birdseye devised an iron container with steel plates. Within them he placed packages of fresh fish in a low-temperature brine refrigerant. Knowing that the public would be wary, Birdseye named the contraption a froster rather than a freezer.

Source: wiktionary