Characteristics of spoiled food Methods of identifying spoiled food

The food that people eat in life has a shelf life. If it is not stored properly, it will go bad. These spoiled foods cannot be used anymore, otherwise it will be harmful to the body. However, this person does not know the characteristics of spoiled food and does not know how to identify spoiled food. Today, the editor will teach you a few tricks to help you learn to easily identify spoiled food.

How to Identify Spoiled Food

1. Identify spoiled food by smell

However, food has obvious characteristics in taste, especially those containing protein, which will be decomposed into free ammonia and sulfide after spoiling. At this time, they will emit a strong sour smell, and sometimes there will be a smell of wine or a foul smell. If the food emits this abnormal smell, it means that it has spoiled.

2. Identify spoiled food by color

Spoiled food also has certain characteristics in color. In particular, when microbial reproduction causes food to spoil, the color of the food will change significantly, and some yellow, purple or brown flaky spots will appear. When the spoilage is serious, the food will change color completely. If you find spots on the surface of the food that are different from the original color, it means that the food has spoiled.

3. Identify spoiled food by feel

After food goes bad, the feel will change significantly, and its properties will deform and soften. For example, solid cream will deform if you touch it lightly. In addition, some fish or meat will produce mucus on their surface after it goes bad, and the meat will become loose and less elastic. You can easily identify which foods have gone bad and which have not just by touching them.