If the mechanic isn't small... than i describe here.
I have two ideas about the mechanic...
1) Item "package tools"
item work like the Spring
pick (left mouse button)
right click mouse button on the item like chest, pot, stockbin...
character work from 0% to 100% ( 5min )
and next in inventory or like Wrought Bar swap "package tools" into package chest, package pot....
- chest must be empty
- stockbin same
- pot same (but copy pure)
2) Build "package machine"
how work ? you put item like chest, pot, stockbin ... (like Stone Boulder into Stamp mill) this build work (need materials boards, metal...) and player need wait 24h