Domaine Gueguen produces Chardonnay from Chablis, the northernmost region of Bourgogne. The winery's portfolio centers on Grand Cru expressions—Les Preuses, Blanchot, and Bougros—each capturing the mineral precision and tension that define the appellation's cool-climate terroir. Chablis Grand Cru wines from Domaine Gueguen have been assessed by Wine Enthusiast, Decanter, Wine Spectator, and Wine Advocate. The Les Preuses bottling stands as the highest-rated expression across these critics. These are unoaked or minimally oaked Chardonnays, built on acidity and salinity rather than richness, with the steely, flinty character Chablis is prized for. The Grand Cru sites—each with distinct soil and exposure—yield wines of structure and aging potential, reflecting both the limestone-rich geology and the precision demanded by Chablis's demanding climate.