Because this kind of meat roll is cut after extrusion. So it's hard to tell what meat it is. This will make many bad businesses profitable. Some people pass duck meat off as mutton and beef. But it's better this way After all, there is nothing wrong with eating duck, but it is cheaper.
But some black-hearted businessmen will add some lymph meat to the meat. Lymph meat contains a lot of germs, and eating too much is definitely harmful to human body.
So when we eat these meatloafs, we still have to choose some trustworthy brands. Brands that are too cheap are better to eat less.