Chiping Wuzao is a geographical indication certification trademark.

Chiping is in the west of Shandong Province, on the west bank of the Grand Canal. In addition to retaining the flavor of jujube, Chiping black dates also have a bright purple color, a fine, flowery texture and a sweet and bright taste. They are a good product among dried fruits. Chiping Wu Zao has a history of more than 2,000 years.

In 1979, the output of black dates reached more than 3.3 million kilograms. In recent years, Chiping black dates have been exported to dozens of countries in Asia, Europe, North America, etc., and are welcomed by people of all countries, especially overseas Chinese. Chiping is known as the "hometown of black dates".

Wuzao is also called smoked jujube and burnt jujube. It is made from cooked fresh red dates, which are boiled, kiln smoked, and cooled in the shade. Only the process of kiln smoking needs to be repeated three times, which lasts for six days and requires "three times of kiln and six times of water". After the black dates are made, they have a bright purple color, fine patterns, and a special sweet taste. The old county annals record: "Yi is a jujube-producing area. Fresh jujubes are smoked with fire, and the surgery is special. They are sold to southern provinces, with tens of thousands of bags sold every year, and the profits are huge." The products are not only supplied to the local area, but also sold well in Hong Kong, Macao and other countries. Southeast Asia and other countries and regions.