Clearly, no-one goes into the forest to pick berries to produce 30 truckloads worth of juice concentrate.
So, what to we consider to be a wild fruit?
Many wile fruits grow naturally in forests and the edges of fields. While wild fruit plants for processing are cultivated on a larger scale, their character and properties remain very original and prototypical — exactly the way our ancestors ate them. That means that the plants were not crossbred or cultivated to manipulate their traits, like for example the standardised “euro-apple” grown in intensive cultivation.
So look out: if you find a topinambur plant by the wayside, spreading its beautiful yellow flowers — it’s probably done that there for many years already.