1, look at the size: because the poisonous pig's feet have been soaked, they look fat and bloated, giving people an unnatural impression, while the normal pig's feet look small and stylish.

2, look at the pores: look at the pores on the pig's feet, if it is not obvious or the pores are small, you can refer to the next step. If the pores are large or obvious, it is recommended not to buy them.

3, look at the color: look at the skin color of pig's feet, generally white with red, and then look at the meat inside the skin. If it is bright red, it is normal trotters. If it is pale, black and other abnormal colors, it is recommended not to buy it.

4. Try to pinch: Under normal circumstances, the skin of pig's feet is closely attached to the meat inside, and it is difficult to distinguish meat from skin by pinching. Please don't buy it if it feels like the flesh is separated.