This tiny biodynamic six-hectare estate, next to the village of Clessé in southern Burgundy, has been owned and run by Pierrette and Marc Guillemot since 1985. They took over from Pierrette's parents, who had been selling their grapes to a local co-op, but this husband-and-wife team decided they wanted to make the wine themselves. They were early adopters of biodynamics and used to run courses with renowned soil consultant Yves Herody. Lalou Bize-Leroy, Dominique Lafon and Julien Brocard all attended courses here. They are obsessive about quality - from the vines, which have been farmed sustainably and without herbicides and pesticides for many years, to the modern equipment used in the winery. The vines have an average age of 50 years and produce low yields of 40-50hl/ha. The grapes are all harvested by hand. No oak is used in the winery; only natural yeasts are used; and there is no chaptalisation before ageing on lees until bottling in the spring.