What is the different meaning between flour for making bread and to make bread?

You're right to point out the difference in those phrases! It's subtle but important:

* "Flour for making bread" refers to the ingredient itself. It emphasizes the purpose of the flour, which is to be used for baking bread. This phrase could be used in a grocery store, recipe, or when discussing ingredients.

* "To make bread" refers to the action of baking bread. It focuses on the process of creating bread, not specifically the flour itself. This phrase would be used when talking about the process of baking, or when describing what someone is doing.

Here are some examples:

* "I bought a bag of flour for making bread." (Focuses on the ingredient)

* "I'm going to make bread this afternoon." (Focuses on the action)

Essentially, "for making bread" describes the intended use of the flour, while "to make bread" describes the activity of baking.