Chateau Joinin was owned by a single family for several generations before it was bought by Madame and Monsieur Mestreguilhem, owners of Chateau Pipeau in Saint-Emilion in 1989. Sixty one acres of vines, mostly Merlot, are planted on clay and limestone soil. In 2000 the Mestreguilhems built a new estate winery to improve and control the quality of their wines.