Imperial is sourced from 13 growers/members of Aliances per la Terra, an organization established to promote organic and biodynamic farming in the Penedès. Currently, all these growers are certified organic, and 12 a certified biodynamic. Imperial is the largest production Sparkling wine at Gramona sourced from 82.5 hectares of vines and can best be described as embodying its house style – a combination of the precision of Xarel.lo and the creamy textures for extensive aging on the lees. Imperial is a blend of 50% Xarel.lo, 30% Macabeu, 15% Chardonnay, and 5% Parellada aged 60 months sur lattes and finished with an 8 g/L dosage from an ancient solera maintained at the property. 350,000 bottles released in an average vintage.