Blueberry Juice Questions

Anyone have experience juicing blueberries? About how many pounds of blueberries to yield a gallon of juice?

Also any ranges for expected juice PH?

I use whole blueberries, macerated in a mesh bag. I want the tannins from the skin. I know that doesn’t answer your question but, depending on your intention, that’s an option.

Also, small, wild blueberries=less juice, more flavor; large, cultivated blueberries=more juice, less flavor, generally speaking.