The Hungarians have the first classification system for vineyards in the world; they did it for Tokaji in 1700. This classification later grew into an appellation control system, with a wholesale classification of the vineyards in 1730, and vineyard censuses in 1765 and 1772. Vineyards were classified, according to soil, exposure to the sun and conditions for developing botrytis, into first second and third class wines. Of the first class sites, Mezes Maly and Szarvas are historically considered to be the greatest vieyards of Tokaji.
The wine above was produced in the St Thomas site and is a first class wine. The five puttonyos designation refers to the sweetness level which is at least 120g/L residual sugar. The Royal Tokaji Wine Company which produced the wine, was one of the pioneering foreign investment venture, co-founded by the British wine writer Hugh Johnson in 1989. Other first class sites include Disznoko, Hetszolo and Oremus.