So I now find out that Kraft has been making processed cheese since 1915.
So not only could my great gramma have been using processed cheese product, heck my great great gramma could have been!
It's fascinating to see just how long we've been making some of these products in the US. Even more interesting is that you don't see quite the same pattern in Europe. I haven't had luck finding a list of foods invented in parts of Europe through the beginning part of the 1900s.
The advertisements focus on the ease of preparation and low cost. So even back then, cost of food was a factor, and not spending hours and hours on food prep was an issue.
(Tally for the week Table 3-1, Workouts- 3)