1) Single grape variety Riesling
2) Feinherb (must appear on label)
3) Between 9,0 and 17,9 g/l sugar (certificate of analysis must accompany the offer)
4) Spontaneously fermented (written confirmation from producer must accompany the offer)
5) Only one offer per producer. If more than one offer is submitted by the same producer, the lowest priced offer will be assessed, regardless of wholesaler