Tuffau | A soil type described by Tom Stevenson (2011) as ‘a buff-coloured, sandstone-rich, otherwise chalky [see chalk] limestone as found in the Loire, particularly around Touraine, and used in the construction of many of its châteaux.’

Bibliography

Tom Stevenson (2011) The Sotheby’s Wine Encyclopedia 5th Edition by Tom Stevenson (Dorling Kindersley, 2011), p.17-19.