We just happened to visit Corzano e Paterno today because a family member has rented a villa very close by, and I wanted to stock up on some wine and cheese. They were harvesting and sorting and crushing today - always a busy and exciting time.
This is a great winery and a good place to visit if you are staying near Florence as it is very close - and they have a brand new tasting room/shop to sell their wine, cheese, and olive oil.
Here is Arianna hand sorting grapes today - they use a double hand sort technique - so the grapes are hand picked, then hand sorted by the bunch, and then once de-stemmed sorted again like in the photo:
And here is a selection of their cheese from an event a couple of years ago: