in warm water, dried in warm flowing air, then packed for maximum freshness and flavor.
So you always get a plumper, moister and 100% naturally sweet raisin.
Soaked in Raisin Juice, is soaking in wine and makes them "Stam-Yainum" and it's Ossur.
They may be soaking numerous batches in the same water/juice, so even if not yad soledes.
An on-site mashgiach should be present to control all of the issues.