tried and tested

(redirected from tried and trusted)

tried and tested/trusted

  (British, American & Australian) also tried and true (American)
used by many people and proved to be effective They ran a highly successful advertising campaign using a tried and tested formula. Most people would prefer to stick to tried and true methods of birth control.
See also: and, test, tried
References in classic literature ?
And now the ghostly apparition of her had returned as to a tried and trusted friend; had commanded me to remember her and to go to her; and had provided against all possibility of my memory playing me false, by writing the words which invited me to meet her "when the full moon shone on Saint Anthony's Well.
The tried and trusted old friend of this family will be always a welcome visitor in any house of mine.