Xīfèngjiǔ, also known as Xifeng liquor, is a type of baijiu distilled from sorghum and made from a barley and pea based qū starter. It is named from its production in Fengxiang County in Shaanxi. Xifeng liquor boasts a long history that dates to the Tang Dynasty[dubious – discuss] and a rich cultural influence. In recent years, Xifeng has put great emphasis on innovation and product development, making great breakthrough in production techniques. On basis of its traditional techniques and flavor, Xifeng strives to develop various series of products with unique taste and different levels of alcohol, catering to different needs of customers in different areas.