Unless you are entirely new to the wine industry, then you are quite aware that Moscato is on fire. But those words don't really mean anything unless you dig deep into the trend and take a look at the numbers. You may think that Moscato is a small category but it's not. It is the fourth largest white wine varietal in terms of dollar sales in the 13-weeks ending February 4 behind Chardonnay ($539.2 million), Pinot Grigio ($212.8 million) and Sauvignon Blanc ($112.2 million), based on Nielsen scans. But it is nipping at Sauvignon Blanc's heels with over eight times the growth.