Actually, the 2021 Riesling vintage is still far too young, but a potential rating can already be given.
The Philipp Kuhn 2021 Kallstadter Saumagen Riesling Großes Gewächs has slate, iodine, herbs, apricot, peach, a medium body, a long finish and is dense, spicy, creamy and balanced. 17.5/20 points.
The Philipp Kuhn 2021 Zeller Schwarzer Herrgott Riesling Großes Gewächs has a rather cool aroma with herbs, apricot, peach and lime. The wine is medium bodied and juicy. 17.3/20 points.
The Emrich-Schönleber 2021 Monzinger Halenberg Riesling Großes Gewächs is far too young and will need a lot of time before it is really enjoyable. The wine has nutmeg, phenolics, honey, an almost full body and is spicy and very mineral. Now 17.8/20 points with potential for more.
The Rebholz 2021 Riesling Ganz Horn Großes Gewächs is also far from its optimal drinking maturity, but is fun to drink now. The wine has an expressive nose with nutmeg, apricot and peach, an almost full body, a long finish and is spicy, mineral and juicy with plenty of supple acidity. The wine has a lot of power and still needs a lot of time to develop its full potential. 18.5/20 points.