Quercetin haze has been observed over the last few years in some aged Sangiovese wines. This problem could be due to an excess of the quercetin in the wine. Leaf removal increases the exposition of clusters to sunlight. which may enhance flavonol synthesis in the grapes. https://www.roneverhart.com/Petite-n-Pretty-9021-Glow-Eye-Cheek-Pallete/