Which of the following best describes processed cheese?

Processed cheese is characterized by its longer shelf life compared to most natural cheeses. This extended shelf life is a result of the way processed cheese is manufactured. It typically involves blending natural cheese with emulsifiers and other ingredients, which helps to stabilize the product and prevent spoilage. This is advantageous for food manufacturers and consumers alike, as it allows for easier storage and longer periods of use without refrigeration in some cases.

The other options do not accurately represent processed cheese. For instance, processed cheese is not made from fresh milk only, as it often includes a mixture of various cheese types and other dairy ingredients. While it can be softer than hard cheeses, it's important to note that not all processed cheese is necessarily softer; it can vary in texture. Finally, processed cheese frequently contains preservatives and other additives to enhance flavor, improve texture, or extend shelf life, contradicting the idea that it contains no preservatives.