tried but true

Hello everyone,

I'm wondering whether the phrases 'tried but true' and 'tried and true' are the same in meaning.

Any difference between them?

Thanks for your help~!

pb

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For your reference, here is some context.

Some good, common ways are to talk about the weather or local news or to find out if you know someone in common. If someone has just arrived from another city or country, you could ask about that person’sjourney. A tried but true method is to offer someone a drink or some food and then talk about your likes and dislikes.

A method or trick that relies on an element of surprise or sense of novelty can be "worn out" if used repeatedly.  For example, the first time you take a girl to a special place, she would be very happy.  But if you always take her to the same place, that would be very boring.  However, there are certain things that always work no matter how many times you do it.