posted by SooYoung .
How did the vacuum packed canning change society? And does anyone know how long this invention lasted before it for replaced?
Vacuum packed canning preserved food so that it didn't spoiled. It was better than drying or salting food to preserve it.
We still have vacuum packed cans.
Oh, ok thanks. I have another question though. What were the different types of labor or jobs that were created in order to invent the invention?