The 2023 Okonomierat Rebholz Pfalz Kastanienbusch Riesling Grosses Gewächs is a distinguished white wine from the Birkweiler sub-region in the Pfalz area of Germany. Crafted by Okonomierat Rebholz, this Riesling showcases the unique characteristics of the ancient Rotliegend soil of its top vineyard, Kastanienbusch, bringing forward a notable expression of Palatinate Riesling.

Professional reviewers have praised this wine for its distinctive qualities. James Suckling awarded it an impressive score of 99, remarking on its "incredibly intense wild herb and berry aromas" and the "giant wave of stony minerality" that characterizes the palate. He described it as "so filigreed and brilliant in the almost endless finish," while recommending decanting and large glasses if consumed young, yet noting it will be best enjoyed from 2026 onwards.

Vinous's Anne Krebiehl MW also provided a high score, ranging from 94 to 96 points. She highlighted the wine's aromatic profile with "a hint of passion fruit" and a "proper crackle of flint" on the nose. The palate, according to Krebiehl, is juicy with a darker aspect and maintains a "lemon edge," finishing with "juicy peach and ripest nectarine" and a "gorgeous bitterness."

Decanter gave the wine a score of 95, noting the Rebholz family's specialty in Pinot Blanc but acknowledging the exceptional Riesling produced from this vineyard. They describe the wine as "powerful and crisp," with spicy notes of "white pepper, lemon pepper, lemon peel, and peach stone," while maintaining elements of "baby fat" and a hint of yeastiness and smokiness.

In summary, the 2023 Okonomierat Rebholz Pfalz Kastanienbusch Riesling Grosses Gewächs is a powerful, complex wine with a mineral-driven profile and vibrant acidity, showcasing the potential of its unique terroir.