Given it's interesting history, Chartreuse is certainly a unique spirit. Chartreuse Green V.E.P. has been given special treatment, allowing it to reach exceptional quality. It is made with the same secret formula as the traditional liqueur, but it has been subjected to long periods of ageing in oak casks. The V.E.P. is produced in a very limited quantity with a wax-sealed cork, a back-label wax-stamped with the Chartreuse seal, and presented in a wooden box marked with a branding iron. Every bottle is identified by it's own number.