At Bariani they don't use straw mulch and they pick by hand. I hope you see this, I don't have access to message you.
Bariani olive oil. It's expensive, but worth every penny. I say something on T.V. showing an olive harvest. There was straw on the ground under the trees. They put a
mesh fabric over it and made the olives drop onto the fabric. It became clear to me that the straw would get everywhere and that was probably the reason for my problems with olive oil.