From the point of view of the list of ingredients, soup made in a crockpot can be regarded as old-fire soup. Generally speaking, old-flame soups have a wide variety of ingredients, including meat, seafood, and vegetables, etc. A crockpot can usually accommodate a wide variety of ingredients, so the flavors of various ingredients can be blended together during the simmering process to create the texture and flavor of old-flame soups.

From the point of view of the production steps, the process of making soup in a crockpot is also similar to that of old-fire soup. Crock pots usually require the ingredients to be cooked over an open flame first, then placed in the crock pot and simmered for a long period of time using the residual heat, allowing the flavors of the ingredients to be fully released and incorporated into the soup. This process is similar to that of making old-flame soups, in that the flavors of the ingredients are extracted through prolonged cooking to create a rich broth.

It is important to note, however, that different crock pots may have different characteristics and features, so specific cooking results may vary from pot to pot. For certain specific ingredients or cooking needs, cooking times and methods may need to be adjusted for best results. Overall, making soup in a crockpot can be a convenient, energy-efficient way to cook that mimics the flavor and texture of an old-fashioned soup.