Can the naked eye test prove that it is safe to eat? Why not carry out chemical inspection and issue relevant certificates? Regarding Mr. Hu's query, Deputy Director Wei explained that at present, according to the national pig quarantine technical specification, sensory inspection is the main method, and the quarantine technical specification of the Ministry of Agriculture does not require that it must pass the laboratory quarantine before it can be put on the market. Therefore, animal products that have passed the quarantine inspection only need the product quarantine certificate. Unqualified products must be treated harmlessly and shall not be listed and operated in slaughterhouses.