In terms of food safety, what does the presence of preservatives typically do?

The presence of preservatives in food plays a crucial role in increasing shelf life. Preservatives are substances added to food products to prevent spoilage caused by microorganisms such as bacteria, molds, and yeasts, as well as to slow down chemical changes that can lead to degradation. By inhibiting the growth of these spoilage agents, preservatives help maintain the food's safety, quality, and freshness over an extended period, allowing it to remain edible and attractively presented for longer. This is particularly important for commercial food production and distribution, where extended shelf life can reduce food waste and ensure that consumers receive safe and enjoyable products.