Bracha Before Making Non-Grape Wine

Hello Everyone, A few days ago, the local grocery store started stocking the large boxes of BC blueberries and I am taking this as my sign to make blueberry wine again. Is there a specific bracha I should say before doing it? I tried googling it, but it only returns results on bracha said before consuming it. Since it is still in blueberry form, I am not sure if this is the right one to say. Sorry, it is a bit niche, but any guidance is appreciated! Thanks so much!