What are the signs of spoiled food?

Choosing the signs of spoiled food can be critical in ensuring food safety and preventing foodborne illnesses. The correct answer identifies several clear indicators of spoilage.

An off-smell, noticeable discoloration, and off-texture are all strong signals that food has gone bad. For instance, if a food item emits a foul or sour odor, it is often a sign that bacteria or other microorganisms have started breaking it down. Discoloration can manifest as brown, gray, or any unexpected color that deviates from the food's normal appearance; this can indicate chemical changes or the growth of mold. Similarly, an off-texture, such as mushiness in vegetables, sliminess in meat, or other unexpected textures, is indicative of spoilage. The presence of mold also directly points to spoilage, as mold is a clear sign of microbial growth that can not only affect the appearance of food but can also pose health risks.

Considering the other options: the first one describes attributes of fresh food rather than identifying spoilage. Ideal conditions and perfect presentation, as mentioned in the third choice, again reflect characteristics of food that is safe and fit for consumption. The fourth option suggests factors related to packaging that don't directly indicate whether the food inside is spoiled; food