It’s a squeezer, not a press in the familiar sense.
https://www.google.com/search?q=olive+press&tbm=isch
For example before you could do this you would need to have learned how to make cloth to make the bag.
Before you could make the cloth you would need to know how to weave.
Before that you would need to know how to spin so you would have something to weave.
It is really interesting how everything we do is dependent on having something that came before.