What factor significantly normalized frozen food consumption for millions of returning soldiers after World War II?

Answer

Military use of freezing technology to feed troops globally

The massive expansion of the frozen food market following World War II was greatly aided by the military's extensive adoption of freezing technology during the conflict. The military utilized quick-freezing methods to efficiently supply troops stationed in diverse locations around the world with preserved, high-quality food rations. Millions of returning soldiers were consequently exposed to and became accustomed to the convenience and satisfactory quality of these frozen meals, reducing their initial skepticism when these convenience items—like TV dinners and packaged vegetables—were subsequently marketed to the growing suburban population.

What factor significantly normalized frozen food consumption for millions of returning soldiers after World War II?
foodinventionHistorytechnologypreservation