Black rice can be frozen for more than 60 days. When it is used, it can be thawed, steamed, heated and thoroughly, and then used as ingredients to write various delicious dishes. Over the years, Ningde black rice processing workshop has passed the product quality inspection report of Ningde City, obtained the certificate of industrial product implementation standard in Fujian Province, and registered the trademark of Shanha black rice.

In recent years, the black rice in Ningde Black Rice Processing Workshop has participated in many food activities and has been favored by consumers. Participated in the 4th Fuzhou Food Festival on May 1 2003; May, 2004, 19, participated in Ningde agricultural and sideline products fair; On June 25th, 2004, he participated in the first Mindong Food Festival held in Ningde on behalf of the national Mindong specialty food, enjoying the reputation of Jiaocheng. On June 25th, 2004, black rice was regarded as a special food, and it was broadcast as news on Mindong TV and Fujian TV. In 2004, black rice was recommended by Zheng, vice mayor of Ningde City, as a special food in eastern Fujian, and was well received by tourists all over the country. At the request of Xiamen merchants, the sales department of Gulangyu Island will also open before New Year's Day in 2005.