Is it safe to eat sausages that have a sour taste?

Generally speaking, it is not recommended to eat sausage with a sour taste. The detailed explanation is as follows:

The sour taste in sausages may be caused by the growth and reproduction of bacteria or other microorganisms. Under favorable conditions, these microorganisms can decompose proteins, fats, and other nutrients in the sausage, producing various acidic substances and other harmful metabolic products. These acidic substances not only alter the taste and flavor of the sausage but may also pose risks to human health. Consuming spoiled sausage may lead to food poisoning, causing symptoms such as nausea, vomiting, and diarrhea.

In addition, the sour taste in sausage could also result from improper storage or inadequate hygiene during processing. If sausages become contaminated during production, transportation, or storage, or if they have passed their expiration date, bacterial proliferation may occur, resulting in a sour odor. Therefore, when purchasing and consuming sausage, it is important to check the product's manufacturing date, shelf life, and whether the packaging is intact to ensure food safety and quality. If a sour smell or any other unusual odor is detected, consumption should be stopped immediately and the sausage disposed of properly.

When purchasing food products, carefully check information such as the manufacturing date, shelf life, and storage conditions, and choose fresh, safe products.