"tried and true" の定義と意味

What is the origin of the idiom "tried and true" and when to use it?

The phrase "tried and true" is an idiom that refers to something that has been tested, proven, and found to be reliable or effective through experience or a history of success. Its origin is not precisely documented, but it has been used for many years to describe things that have stood the test of time and have consistently delivered positive results.