Where does the oil come from?

Today we visited the place where Abel, a father of the collective, has everything he needs to convert the precious olives that our children picked yesterday into the liquid gold that we like so much: oil.
We have walked from Galaroza, passing through water treatment plants and rivers, uphill and downhill until we arrived at the farm where Abel was waiting for us.
The first thing we did was to clean the olives, which means to separate the olives from the leaves and twigs that accompanied them.
For this we had a Zaranda. A manual and handmade device through which the olives were passing, the leaves fell through the cracks and the olives arrived to another box already cleaned.
Then it was time to weigh them? Abel showed us a manual and handmade weighing system, and we saw how it worked, adding and subtracting, we managed to write down how many kilos of olives we had obtained. 
Then we have seen how the olives enter a machine that grinds them, and become a mush that turns and turns until you see some oil.
We have had patience to wait as at some point a fine trickle of extra virgin olive oil began to come out. We have been lucky enough to taste it with our little fingers and we were surprised by how delicious it was!!!!! Then, back on that path, a little more tired, and with more knowledge learned!!!!