No (scary sounding chemical) detected

While accompanying my wife on a trip to the grocery store I saw this gem in the wine section.

The claim of "no sulfites detected" seems like an evolution in the ridiculous "no" claims trend. Does this mean the chemical is in there but they just didn't test for it?

I could see it now, a company could make a cosmetic with any chemical they want and as long as they don't test it for any chemical they could claim "no sulfates" or "no parabens detected".

Showing just how silly the "no" claims are.