Bacon, ham, sausage, and other cured meats were indeed originally created as a way to preserve meat before the advent of refrigeration. The curing process typically involves adding salt and sometimes other seasonings to the meat, which helps draw out moisture and inhibit the growth of bacteria that can spoil the meat.
While these cured meats are more stable and have a longer shelf life compared to fresh meats, they still need to be refrigerated or stored in some controlled environment. Here are a few reasons why refrigeration is still necessary:
Modern curing methods: While traditional curing methods were effective for preserving meat, modern commercial practices may involve different additives, curing agents, or smoking methods that might not provide the same level of preservation. Refrigeration helps extend their shelf life and maintains their quality.
High moisture content: Although curing reduces moisture, many cured meats still retain a significant amount of moisture compared to dehydrated or dried meats. This moisture can promote bacterial growth if the meats are stored at higher temperatures.
Food safety regulations: Food safety regulations often require the refrigeration of certain perishable foods, including cured meats, to prevent the growth of harmful bacteria and reduce the risk of foodborne illnesses.
Extended storage: Even though curing extends the shelf life, it doesn't make the meat indefinitely shelf-stable. Refrigeration slows down the deterioration process and helps maintain the flavor and texture of the meat over an extended period.
Contamination risk: Once the package is opened, cured meats can be exposed to air and potential contaminants. Refrigeration helps slow down bacterial growth and keep the meat safe for consumption.
It's worth noting that different types of cured meats have varying requirements for storage. Some may be more shelf-stable than others, but to ensure their safety and quality, refrigeration is generally recommended for most commercially available cured meats. Always follow the storage instructions provided on the product's packaging for best results.