Ten days. Winter-brewed wine has a yellow color and a faint sweet-scented osmanthus fragrance, and its shelf life in the refrigerator is only ten days. Because it belongs to fresh wine, it basically has no taste of the wine just bought, which is similar to a drink. After late fermentation, the aroma of wine will gradually emerge. The traditional 1.25 liter bottled winter brew is added with a secondary filtration process to extend the shelf life. The shelf life in winter is 30 days, and it is extended to 90 days below 10 degree. The shelf life of ordinary vials is 6 months.