Put the wild blueberries into a blender jar.
Now add the water, it is good to have it a bit hot to help melt the frozen blueberries. If you let the blueberries thaw beforehand then just use room temperature water. Same if you are using fresh blueberries.
Add the liquid stevia which is optional if you like your wild blueberry juice extra sweet.
Blend everything on liquefy until juicy.
Pour the juice into glasses and serve the wild blueberry juice immediately.