What stops food from decomposing?

There are several factors that can stop or slow down the decomposition of food. Some of the most common methods include:

* Refrigeration: Low temperatures slow down the growth of bacteria and other microorganisms that cause food to decompose. This is why refrigerating perishable foods is so important.

* Freezing: Freezing food can stop decomposition almost completely. This is why frozen foods can be kept for much longer than fresh foods.

* Canning: Canning is a process of sealing food in airtight containers and then heating it to a high temperature. This kills bacteria and other microorganisms, and also prevents oxygen from reaching the food, which helps to prevent decomposition.

* Pickling: Pickling is a process of preserving food in a solution of vinegar or brine. The acid in the vinegar or brine kills bacteria and other microorganisms, and also helps to prevent decomposition.

* Drying: Drying food removes moisture, which is essential for microbial growth. This is why dried foods can be kept for much longer than fresh foods.

* Smoking: Smoking food can help to preserve it by adding a layer of smoke that contains chemicals that kill bacteria and other microorganisms.

* Adding preservatives: Preservatives are chemicals that are added to food to prevent or slow down decomposition. Some common preservatives include salt, sugar, nitrates, and sulfites.