Yohan Castaing was born in Bordeaux and grew up surrounded by vineyards. His family, vineyard owners, naturally introduced him to the world of wine and viticulture. After studying business and commercial strategy, he became a wine merchant and then a consultant.
His passion for viticulture, the terroirs and the various French regions led him to become an independent wine critic after working on harvests in Bordeaux.
Based in the Bordeaux region, Castaing has established his reputation as an independent wine critic and founder of his own advertisement-free website Anthocyanes.fr, as well as writing for other print and digital media, notably in France for the daily financial newspaper Les Echos, but also in English for Decanter magazine.
In 2023, he joined the reviewer team for The Wine Advocate, reviewing the wines of the Loire Valley, Languedoc, Roussillon, Provence and the Southwest of France. He also assists William Kelley in covering specific Bordeaux subregions (Pessac-Léognan, Sauternes-Barsac and the satellite appellations of the Right Bank), as well as bottlings from the big houses of the Champagne region.