Bologna looks so uniform that it is easy to forget it starts as separate ingredients. That smooth slice in your sandwich is a finely ground, cooked sausage. But there is no single recipe behind every package, and the differences begin with the meat.

Depending on the product, American-style bologna can contain beef, pork, chicken, turkey or a combination. Two packages that look almost identical may use different blends. The name on the front offers a starting point, while the ingredient list provides the details.

Its familiar texture comes from processing meat and fat into a very fine mixture, often with water or ice. Once cooked, that mixture forms the even consistency that makes bologna easy to slice. You cannot reliably identify its ingredients just by looking at it.

Seasonings give each recipe its flavor, while some products also contain sweeteners, curing ingredients or binders. Their presence varies by manufacturer. Broad claims about what “all bologna” contains miss those differences.

The answer to what is inside your sandwich is on the package. Check the listed meats, additional ingredients and nutrition information before comparing products. Bologna may look simple, but the label reveals distinctions that its perfectly smooth surface cannot.