1, the X-shaped seal is a "destruction seal", and the meat covered with this seal is prohibited from being sold and eaten.
Triangle seal is a "high temperature seal", and this kind of meat can only be sold after high temperature treatment within a specified time.
The rectangular seal is "edible oil seal", which means that this kind of meat can't be sold, can't be eaten directly, and must be refined into oil before it can be sold.
4. The circular seal is the "inspection certificate seal", and the name, number and year, month and day of the designated slaughterhouse are marked on the seal. The meat stamped with this seal is "assured meat" and can be safely eaten.
Extended data
When buying pork, we should not only pay attention to identifying the pork quarantine seal, but also pay attention to the following three points:
First, pay attention to whether the operator has a business license and a health permit.
Second, pay attention to identifying the quality of pork with simple methods. You can pull out one or several pig hairs and take a closer look at their hair roots. If the hair roots are red, it may be sick pork. If the hair root is white, it is not a sick pig.
Third, it is necessary to prevent the butcher from deliberately pretending, and pay attention to buying whole pork instead of spare parts. Some unscrupulous butchers deliberately cut unqualified pork into pieces and put them next to qualified pork with circular quarantine seals to confuse consumers.