Les Granits Blanc is made from a selection of the oldest Marsanne vines on the estate’s best Saint Joseph soils. It has a golden yellow color, and on the nose is mineral with floral overtones of honeysuckle and lily in its youth, Tabasco, wax, and honey. Well-balanced, this is a very harmonious wine with subtle spices developing into honey with ageing. Depending on the vintage, the wine can be kept from 30 to 60 years or from 50 to 75 years.

The 2019 Chapoutier St Joseph Les Granits Blanc is a noteworthy example of white wine from the Northern Rhone region of France, crafted entirely from the Marsanne varietal. With an alcohol content of 14.5%, this wine promises a robust and full-bodied experience.

Jeb Dunnuck awarded this wine an impressive score of 96, describing it as "incredible" and highlighting its "rounded, layered texture" and "terrific sense of freshness and purity." He noted its complex profile, with "orange marmalade, quince, salty minerality, white flowers, celery seed, and a touch of spice" coming through. Dunnuck regards it as being on par with its predecessor from 2018 and expressed his intention to purchase it.

Robert Parker's Wine Advocate, with a score of 94, also praised this wine. The review by JC emphasizes the wine's "brassy-hued, full-bodied" nature and its "ripe and opulent" character. Aromas and flavors of "honeyed citrus, toasted grain, pineapple, and melon" are apparent, and the wine's "silky-textured and long" finish is noted as well. JC believes it to be a standout in the appellation, with a potential decade of aging ahead.

Decanter gave the wine a score of 93, commenting on its "deep straw colour" and "very full-bodied" nature for a Saint-Joseph. The review points out the wine’s "remarkably powerful" acidity and "dense and fulsome" character, declaring it a product of a "very opulent year."

Overall, the 2019 Chapoutier St Joseph Les Granits Blanc is a highly rated Marsanne that showcases the terroir of its region with complexity, opulence, and potential for aging.