tried and true

Adjective

Well-established and tested; known to work or succeed based on extensive experience.

Japanese Meaning

実績があり、何度も試され信頼性が確立された / 長い経験に基づき、その有効性が証明された

We relied on the tried and true method to get consistent results.

私たちは一貫した結果を得るために、実証済みで信頼できる方法に頼りました。

Sense（1）

Well-established and tested; known to work or succeed based on extensive experience.

He liked to stick to tried and true methods in his garden.

more tried and true

（ comparative ）

most tried and true

（ superlative ）