What is certo?

"Certo" can refer to a few things, so to give you the best information, I need some context. Are you referring to:

• Certo fruit pectin: This is a brand of powdered pectin used in making jams and jellies. It's a gelling agent derived from fruit. Information about this would include its uses in preserving fruits, different types available (liquid and powdered), and how to use it in recipes.

• Certo (a company or product in a different context): It's possible "Certo" is a name used in another industry or a different product altogether. If this is the case, please provide more detail.

Please clarify which "Certo" you are interested in, and I'll provide more specific information.