How is burnt jujube made?

The traditional local products of Yanggu and chiping counties are also called smoked dates and burnt dates. It is made of cooked fresh jujube by boiling in water, kiln smoking and cooling. Only the 1 process of kiln fumigation will be repeated three times for six days, and it can only be done after "three times in the kiln and six times in water". After jujube is made, its color is deep purple and bright, its pattern is fine and it has a special sweetness. "Old County Records" records: "yi county is a jujube producing area. Smoked with fresh dates and fire, the operation is very fine, exported to southern provinces, with tens of thousands of bags every year, and the profit is great. " Products are not only supplied locally, but also sold well in Hong Kong, Macao and Taiwan, Southeast Asia and other countries and regions.