The free-run juice of hand-picked botrytized berries. Residual sugar should be at least 450 g/l but levels of 800 g/l or more are not unheard of. Eszencia takes years to achieve a modest alcohol level of 4â5%. It is rarely sold commercially, and smaller wineries will not handle it separately. It is typically used for blending to improve the concentration of AszĂș wines.