Assembly Line

What is canned soup made of?

Canned soup takes chickens, water, tomatoes and corn starch directly. Trace them back and you pass 1 made thing on the way to 4 raw materials.

How canned soup is made See it on the map

What goes straight in

From the ground: 4 raw materials

What it is packed in

On the line, but left out of everything above, because it holds the finished thing rather than goes into it.