Basically, the deeper the shade of the wine, the sweeter it is usually. Do they want to get rid of it because it is proved so unpopular? The amount depends on the vintage (which determines the size of the berries) as well as concerning the varietal writing. https://obedient-dolphin-kvlkb7.mystrikingly.com/blog/gia-r-u-hennessy-vs-s-khi-u-n-i-mu-n-co-m-t-plan-chi-ti-t-t-vi-c-xac-d-nh