[fny]

Recipes are not copyrightable.

If the food you produce with them can no longer be protected, what value are the tools used to create them?

[iamleppert]

That's a bad analogy. Food is consumed exactly once and has to be produced again each time, and thats where the majority of the value is, even for food that is produced many times over from a recipe.

[fny]

By your logic, Coca-Cola has no reason to keep their recipe a trade secret.