The raw material salt of the tea salt is washed with natural and non-polluting salt lake brine, and the edible salt series produced by using tea salt as a raw material has high purity, low soluble impurities, and contains various trace elements and glutamic acid. Alanine, leucine, lysine and other amino acids have special flavoring effects. They have the characteristics of “salty and sweet” and are not easy to agglomerate. Especially when marinated, the salt is quickly added and the marinade is improved. The effect of pickles and pickles can shorten the curing time and improve the flavor; the vegetables and meat products after pickling are crispy and delicious, the taste is delicious, and it is not easy to deteriorate.

Chaka Salt Lake is located in the Chaka Basin in Wulan County, with an altitude of 3,100m and an altitude of 3060m. Geographical coordinates: 99o02 ́-99o12 ́ east longitude; 36o18 ́-36o45 ́ north latitude, located at the lowest point in the southwestern part of the Chaka Basin. The temperature is dry, less rainy and windy, and the daily temperature difference is 20 °C. The salt lake is distributed in the northwest-south direction, with a length of 15.8 kilometers and a maximum width of 9.2 kilometers. The area is 105Km2, which is a solid-liquid and salt lake. The average thickness of the stone salt is 4.9m and the thickness is up to 15m. The reserves of rock salt are 480 million tons, including solid phase of 45.958 million tons and liquid phase of 17,000 tons. The chemical type of lake water is sulfuric acid type magnesium sulfate sub-type salt lake, and the brine concentration is 22-26`Be°. The content of beneficial components in the salt lake brine: NaCL 14.7%, MgCL2 u003c13.3%, KCL 1.4%, MgSO4 5.4%. Keke Salt Lake is located in the Xisai Basin in Wulan County, 30 kilometers away from Wulan County in the east. It is bordered by Yak Mountain in the north and less than five kilometers south of Xiligou in the south. Geographical coordinates: east longitude 99o38 ́-99o30 ́; north latitude 36o50 ́-37o06 ́, is a solid-liquid coexistence salt lake, mainly solid, area 95.20Km2. The salt is layered, the salt thickness is 26.75m, the average thickness is 9.48m, and the reserve is 1.03 billion tons, of which the solid phase is 9942.58 million tons and the liquid phase is 33.878 million tons. The salt lake chemical type is sulfuric acid type magnesium sulfate subtype salt lake. The whole lake area is located in the middle of the Xiligou fault basin, which is irregularly distributed in the northwest and southwest, with a length of 28Km and an average width of 4-5 Km. Salt-forming components: NaCL 73.55%, Na2SO41.84%, MgSO41.16%, CaSO43.35%, MgCl20.98%, KCl0.15%, CaCl20.13%. The brine concentration of 23-26`Be° Chaka and Keke Salt Lake has formed a natural environmental protection barrier for the salt lake due to its special climate and geographical features, as well as the vast grassland vegetation and hundreds of kilometers of mountains. There is no industrial pollution in the surrounding areas, and the ecological environment of the air, water quality and soil in the area is maintained and clean. The salt lake resources have high purity, low impurity and no harmful substances. It is China's natural "green edible salt treasure house".

Technical requirements for tea card salt quality (1) Raw materials. The raw materials must be used with raw salt or regenerated salt after the full leaching period, and the tea card and Keke Salt Lake brine are used for washing. 1. Powdered salt raw materials: sodium chloride content ≥93%, insoluble matter ≤0.2%, soluble impurities ≤1.6%. 2. Sun salt raw materials: sodium chloride content ≥ 93%, insoluble matter ≤ 0.15%, soluble impurities ≤ 1.6%. (2) Process. 1. Sun salt (salted salt): brine drying→ mining→collection→ demolition→processing→metering packaging→finished product 2. powdered salt (powdered salt, fortified nutrient salt, multi-species salt): raw material salt → Graded washing → crushing → dehydration → processing → metering and packaging → finished product (3) process requirements. 1. Process requirements: (1) sun-dried salt (picking salt): brine drying, mining according to the salt quality of the mining area to determine the depth of mining; Jiyu: raw material salt mining after the lake, washed with salt lake brine after the depression The trapezoidal salt mash that is 10 meters high and 50 meters wide at the bottom is concentrated and concentrated. Demolition: The raw material salt can be removed after being inspected for 3 to 6 months. (2) powder washing salt (powdered salt, intensive nutrient salt, multi-species salt): according to product specifications or customer requirements to determine the drying net specifications; use salt lake brine for washing, maintain the concentration of washing liquid is 20 to 24 waves; salt The additive potassium iodate and sodium selenite are added before the wet drying, and the nutrient salt and the salt additive of the multi-species salt are added after the dry screening. (4) Quality characteristics. 1. Sensory characteristics: white or blue-white, salty, no smell, no visible foreign objects. 2. Physical and chemical indicators: project indicator powder washing salt day sun salt total amino acid ≥ 20 mg / kg 25 mg / kg soluble impurities % ≤ 0.801.35 Note: 1) particle size indicators can be organized according to user requirements. 2) The iodine content of non-iodine tea card salt provided by people who are not suitable for iodized salt in high iodine area should not exceed 5mg/kg3) The quality of salted salt products must meet the standard of sun-dried salt. 3. Safety requirements: Product safety indicators must meet the relevant regulations of the state for similar products.

Apply to：
Producers within the scope of protection of tea card salt geographical indication products may apply to the Quality and Technical Supervision Bureau of Wulan County, Qinghai Province for the use of “Special Marks for Geographical Indication Products”, which shall be examined by Qinghai Provincial Bureau of Quality and Technical Supervision and be reviewed by the General Administration of Quality Supervision, Inspection and Quarantine. Announcement approval. The statutory testing agency for tea salt is designated by the Qinghai Provincial Bureau of Quality and Technical Supervision.