Learn English – a more refined & formal way to say ‘we eat our own dog-food’

expressionsformalityphrases

In some formal communication, I would like to use that phrase to indicate how reliable my product is, because we use it on a regular basis, and thus serve as a reassurance.

Best Answer

Here's a definition from Joel Spolsky:

The term “eating your own dogfood,” in the software industry, means using the code you’re developing for your own daily needs: basically, being a user as well as a developer, so the user empathy that is the hallmark of good software comes automatically.

So you can write, "We are users as well as developers of our own product; it's a reliable part of our daily workflow," or however it is you use it.