Cassava (scientific name: Manihot esculenta, English name: Cassava, Tapioca), also known as cassava, is a kind of Euphorbiaceae plant, native to South America. Cassava root is edible, so in tropical and subtropical areas there are many residents planted cassava, and the flour made of it is called cassava flour (Tapioca, also known as cassava flour or flour).　　Cassava is a subshrub, with fleshy long cylindrical tuber. The stem is erect with milky sap, and the leaves are alternate, palmately 3-9-parted, with lobes lanceolate to long elliptic-lanceolate. Terminal or axillary sparse panicles, unisexual flowers, male and female on one inflorescence, female flowers above, male flowers below, without petals. Capsule globose, with 6 longitudinal ribs.

Dried cassava is the raw material for manufacturing alcohol and citric acid, this year, due to the shortage of domestic raw materials, brewing enterprises on the demand for dried cassava, coupled with the rise in the price of dried cassava manufactured products, resulting in a substantial rise in imports of dried cassava, but the quality of its problems and the risk of epidemics need to cause great concern. 2010 first half of the year, the Huangdao Port of entry into the dried cassava 86 batches, weighing 107,700 tons, with a value of 21,480.4 million tons. In the first half of 2010, Huangdao port imported 86 batches of dried cassava, weighing 107,700 tons, the value of 21.484 million U.S. dollars, respectively, year-on-year surge 172%, 173% and 225%. Inspection and quarantine found that there are quality problems and outbreaks of more than 81,200 tons, accounting for 75.4% of the total imports, involving more than 50 batches, the detection rate of 58.1%.

The quality problems of imported dried cassava mainly include: First, mold. Due to the high moisture content of dried cassava and long-distance sea transport through the container, the surface layer is very easy to mold, some of the goods are seriously rotting and deterioration. Second, high impurity content. As the dried cassava mainly from Vietnam, Thailand and other Southeast Asian countries, the production and processing is simple and rough, in the process of processing without peeling and de-impurity, tuber attached to the sediment, plant residues and other impurities into the product, directly affecting the results of the laboratory test, and at the same time in the process of transshipment may result in the weight of the loss. Third, the heavy metal lead exceeds the high rate. In the first half of **** detected lead content exceeded more than 40 batches, accounting for 46.5% of the total batch, lead content exceeded the standard goods, such as improper use in the follow-up regulatory process, will cause great harm to people's health and environmental safety. Fourth, the epidemic detected many problems. Detected pests are mainly coffee bean elephant, spore firm armor, rust red flat valley pirate red, small fungus bug, flat valley pirate, big valley pirate and so on more than ten kinds.

In order to ensure the quality and safety of imported dried cassava, to safeguard the interests of the domestic consignee, inspection and quarantine departments for the inspection and quarantine of dried cassava found in the following recommendations:

One is in the signing of the foreign trade contract to make clear the quality of the provisions of the terms and conditions of the claim, especially for the content of heavy metals and organochlorine pesticide residues and other issues, once found that the quality of the problem can be timely foreign claims to avoid unnecessary economic losses. Unnecessary economic losses; Second, the quality of the source of goods, choose a good reputation, stable source of foreign consignors; Third, to carry out risk analysis, and further strengthen the port quarantine work, do a good job of epidemic monitoring, to ensure that the unqualified, carrying the epidemic products outside the country; Fourth, to do a good job of follow-up supervision, strengthen the port bureau and the Mainland Bureau of contact and communication, joint local quality supervision, environmental protection, industry and commerce departments to improve the transport, storage, processing, use, and the use of the products. Transportation, storage, processing, use of the whole process of supervision, the formation of regulatory synergy; Fifth, it is recommended that the domestic consignee in the WTO framework, the full use of SPS, TBT agreements and other technical means to protect the safety of the national security and health of the nationals, to protect the import of dried cassava fair trade, and take the road of sustainable development.