How to see if cooked pig liver is bad?

1, white spots on the pig liver indicate that it is infected with parasites. Parasites in pigs generally include roundworms, whipworms, nodular nematodes, renal nematodes and pulmonary filariasis. If these parasites appear in the pig liver, it will lead to abnormalities in the pig liver, such as white spots and lumps. Good powder liver and noodle liver taste tender and delicious when cooked.

2. Good powder liver and noodle liver are tender and fresh after cooking, and good hemp liver is tough after cooking, so it is also chewy.