Severe stress when the intestinal wall submucosal hemorrhage, iron porphyrin in the blood cells were converted to free divalent iron ions, so it shows gray-black, the cause of stress feed replacement feed starvation additives: yellow mud powder, alkaline copper chloride, trichothecene toxins, deoxidizing substances, ferrichemicals; blackening of the back half of the large intestine in a section, not all, but if you don't cut off the section of the blackened, cooking process all the intestines will be blackened.
Can you eat blackened pig intestines
It's best not to eat them, mainly for the sake of your body's health. Normal pork sausage is definitely not black after cooking, and the reason for turning black may be due to spoilage or other bad chemical reactions. Therefore, I recommend that you do not eat, directly find a way to dispose of, in order to prevent after eating their own discomfort, when the real loss is not worth it.
Characteristics of Pig Intestine
Fatty intestines are also known as pig intestines and pig intestines. Pig intestines are used to transport and digest food, have a strong toughness, and is not as thick as pork belly, and a moderate amount of fat. According to the function of the pig intestine can be divided into large intestine, small intestine and intestinal head, their fat content is different, small intestine is the thinnest, intestinal head is the most fat.