The black scorpion in Longzi County is made from high-quality black barley, which is 3800 meters to 4200 meters above sea level in Longzi County. The color is grayish black, the powder is even, the thickness is moderate, and it has a unique green scent and a sweet taste. With the continuous improvement of people's living standards, healthy consumption and healthy eating have become fashionable. Longzi Black and Green is favored by many Tibetan consumers and mainland consumers.

Technical requirements for quality of Longzi black barley 1. Raw material requirements must use Longzi black barley as raw material. Second, processing 1. Process: screening → cleaning → frying → grinding → packaging. 2. (2) Milling: Grinding by traditional water milling method. 3. The storage period shall not exceed 12 months under the condition of storage from 0 °C to 15 °C. Fourth, the quality characteristics 1. Sensory features: gray color, uniform powder, moderate thickness, unique green scent, sweet taste. 2. 3. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

Apply to：
Producers within the production area of ​​Longzi Blackland can submit an application to the Quality and Technical Supervision Bureau of Shannan District of the Tibet Autonomous Region for the use of the “Special Mark for Geographical Indication Products”, which is reviewed by the Quality and Technical Supervision Bureau of the Tibet Autonomous Region and submitted to the General Administration of Quality Supervision, Inspection and Quarantine for approval. announcement.