Metal cutlery food pairing

I only have experience with metal and non-metal cutlery/food combination. I'm aware this isn't really what you've been asking, but still find it worthwhile to share.

From my personal experience there is a tasting difference between metal (I only know stainless steel) and non-metal (in my example nacre) with eggs. The difference comes from the "mouth-feel" of the spoon. I tried this with the same egg and the spoons both rested at the same place (to compensate temperature differences).

I experienced the metal spoon as cold (even though it was at room temperature), kind of "hiding the eggs flavor", while the nacre spoon was not only warmer, it felt kind of as if it wasn't there or at least much less prominent, offering a fuller flavor of the egg.

Found a few other references to these foods tested by the Institute of Making

After three years of research, they unleashed the spoons on this complex Indian dinner, served with a flight of seven beers. The sight of 15 adults sucking their spoons like babies was an unusual start to a dinner party, but they had surprisingly different flavours. Copper and zinc were bold and assertive, with bitter, metallic tastes; the copper spoons even smelt metallic as they gently oxidised in the air. The silver spoon, despite its beauty, tasted dull in comparison, while the stainless steel had a faintly metallic flavour that is normally overlooked. As Miodownik pointed out, we were not just tasting the spoons but actually eating them, because with each lick we were consuming “perhaps a hundred billion atoms”. When the spoons were tasted with food, there were some surprising revelations. Baked black cod with zinc was as unpleasant as a fingernail scraped down a blackboard, and grapefruit with copper was lip-puckeringly nasty. But both metals struck a lovely, wild chord with a mango relish, their loud, metallic tastes somehow harmonised by its sweet-sour flavour. (“With sour foods, like mango and tamarind, you really are tasting the metal,” says Laughlin, “because the acid strips off a little of the surface.”) Tin turned out to be a popular match for pistachio curry. And Laughlin sang the praises of gold as a spoon for sweet things: “Gold has a smooth, almost creamy quality, and a quality of absence – because it doesn’t taste metallic.”

As well as the full publication called The use of standard electrode potentials to predict the taste of solid metals which appeared in Food Quality and Preference vol.22 I have found this Journal to be an amazing tool, there are many topics on the lesser thought of aspects of cooking, presentation, and consumption of the perfect dishes.

Based on everything I've ever read, stainless steel should be non-reactive with anything you'd encounter in a kitchen. There are specific warnings about copper and aluminum, and semi-nutty warnings about plastics and cast iron in some situations, but I've never read anything remotely reputable denigrating stainless steel.