What is a food decay?

Food decay is the process by which food deteriorates and becomes unfit for consumption. Decay is caused by the action of microorganisms, such as bacteria and molds, which break down the food and produce harmful substances. The rate of decay is influenced by a number of factors, including the type of food, the temperature, the humidity, and the presence of oxygen.

Here are some of the common causes of food decay:

* Bacteria: Bacteria are single-celled organisms that can grow on food and cause it to spoil. Some of the most common types of bacteria that cause food decay include *E. coli*, *Salmonella*, and *Listeria*.

* Molds: Molds are fungi that grow on food and produce spores that can be harmful to humans. Some of the most common types of molds that cause food decay include *Aspergillus*, *Penicillium*, and *Rhizopus*.

* Yeasts: Yeasts are fungi that can grow on food and cause it to ferment. Some of the most common types of yeasts that cause food decay include *Saccharomyces cerevisiae*, *Candida albicans*, and *Kluyveromyces marxianus*.

Food decay can be prevented by following a few simple steps:

* Keep food refrigerated: Most bacteria and molds grow best at temperatures between 40°F and 140°F. By refrigerating food, you can slow down the growth of microorganisms and keep food fresh for longer.

* Cook food thoroughly: Cooking food to the proper temperature kills most bacteria and molds. Be sure to follow the cooking instructions on food labels to ensure that food is cooked to a safe temperature.

* Avoid cross-contamination: Cross-contamination occurs when harmful bacteria are transferred from one food to another. To avoid cross-contamination, keep raw meat, poultry, and seafood separate from other foods. Wash your hands and cutting boards frequently, and use separate knives to cut raw meat, poultry, and seafood.

* Discard food that has expired: Food that has expired should be discarded immediately. Do not eat food that has an off odor or flavor.

By following these simple steps, you can help to prevent food decay and keep your food safe for consumption.