The bag in "rice pork" is a parasite, which is generally located at the texture between lean meat and fat meat, endangering human health. The bad fat particles in this piece of pork are located in the fat layer, which is not very harmful to human body, but it tastes bad. Not edible.
Rice and pork are easily confused with fat particles, so be careful when buying meat. Put the white spots on the meat in your palm and rub them hard. If it melts, it is a fat granule; if it doesn't melt, it is an egg.
Extended data
Taenia solium is a kind of 2 ~ 4 cm flat band worm, which is mainly parasitic in pigs or cattle, and then spreads to all tissues of the whole body with blood flow, and develops into cysticercosis after 2 ~ 3 months. Pork containing cysticercosis is commonly known as "rice pork".
This kind of meat is very harmful to human body. After eating it by mistake, there may be two kinds of diseases: one is tapeworm, which grows 2-4 meters long in the small intestine, and white worms are discharged from the feces. In fact, it is a tapeworm, and each segment can contain as many as 40,000 eggs with embryoids.
The other is cysticercosis. After eating cysticercosis by mistake, the eggs hatch into larvae under the action of gastric juice and intestinal juice, which are brought to the whole body through blood and grow rice-like cysts in muscles. Cysticercosis can be parasitic on human heart, brain and eyes. Blindness in the eyes, epilepsy in the brain.