These grapes are really for decorative purposes only, it's a variety known as Baco. They look nice hanging all around the house, but when September arrives they have to go.
We now have two types of Hornet in our area, the 'ordinary' one, and the newcomer Asian Giant Hornet (it should be noted that the latter has already reached southern England).
These wretched, and dangerous, insects love grapes so they need to be picked and composted, otherwise they'll be buzzing all around, and inside, the house.
They don't even make very good juice, so they get thrown away and covered with grass cuttings.
Seems a shame, doesn't it.