Normal pig liver: fresh and clean, no odor, reddish-brown or light brown, no bile, no blisters, smooth and smooth surface, slightly bloody flavor, no yellow bile, worms and foreign objects in the liver after cutting.
Abnormal pig liver: the surface has scattered red spots, blood-colored blisters and patterns such as filaments, blue-purple, brown-black, yellowish, earthy yellow, gray-yellow, or swollen, shrunken, white or yellow lumps on the surface, easy to break when the hand pressure or such as lime, cut inside the bile, sandy, yellow-white dots, and sometimes there are pieces of worms.
Deteriorated pig liver: the surface is gray-brown, green and black, no light, easy to break when finger pressure, no elasticity, cut is dark red, sour smell .
Doing wholesale business, Ms. Lin told reporters that the pig offal surface slippery, not like pork, "two chapters and a certificate" marked at a glance, some vendors will take advantage of the opportunity to fish in troubled waters, the sale of unlicensed pig liver. To this end, she reminded readers if they want to buy pig liver, it is best not to buy at the farmers' market stalls, should go to the regular supermarkets to buy, the latter is relatively safer.
The relevant experts of the CDC also introduced the purchase of pig liver should choose a glossy surface, the color purple and red uniform pig liver; purchase of pork loin should be cut with a knife to see whether the cortex and medulla (between the white tendons and red tissue) is ambiguous, ambiguous is not normal.