You can add the bokashi fermented food waste to a worm bin anytime after the 2 week ferment period is complete.  As the bokashi food waste is acidic initially, we suggest that you mix it into one side, or corner, of the worm bin. That way the worms can come to it, or leave it, as they please. The acidity reduces each day, so you’ll find that soon enough the worms will readily come to it.