Castel Pietraio farm is situated in the commune of Monteriggioni in the Sienese Hills area. Its 158 hectares are divided among vineyards, olive groves, corn and sunflowers fields, meadows and woods, respecting the natural features of the ground. Its particular climatic conditions, its position on the hills and its favourable exposure, make Castel Pietraio a farm with an excellent vocation to quality wine-growing. Since 1995 an investment plan has started in order to improve the product. The new vineyards have been planted with a bigger number of plants per hectare, low productivity rootstock and autochthonous clones,believing that great wines are obtained first of all in vineyards with low production per understock. To be sure to get a good product, a few elements are fundamental: the nature of ground, its exposure, natural soil, from manuring to spring green manure, and the employ of the most modern agronomic techniques which allow a strong reduction in the use of plant protection products, in order to create a produce which is more respectful of the environment and of the consumer's health. Summer thinning out lets to improve the quality of the grapes to harvest, while defoliation allows a better exposure of the bunch to the sun, to favour sugar development. The cellar is a point of pride: it is equipped with the best and most modern facilities for wine-making from own grapes only, besides of the barriques of allier for ageing.