Alterations in taste perceptions aren't necessarily the result of the cutlery itself, he says, but of the mental associations we bring to a meal. "Silver spoons and other silver cutlery, I'm guessing, are more commonly associated with high-quality food in our prior eating experiences," Spence says.

In recent years, psychologists have found that the color and shape of plates and other dishes can have an impact on the eating experience. Studies have found, for example, that people tend to eat less when their dishes are in sharp color-contrast to their food, that the color of a mug can alter a drinker's perception of how sweet and aromatic hot cocoa is, and that drinks can seem more thirst-quenching when consumed from a glass with a "cold" color like blue.

So why study cutlery? For starters, there wasn't any real scientific literature on the topic, Spence tells Linda Wertheimer on Weekend Edition Sunday.

Cheese might take on a whole new flavor when you use a plastic utensil. Photo: Elizabeth Willing/Courtesy Flavour

Or, as he put it to The Salt, cutlery is "one of the few things we stick in our mouth that others have stuck in their mouths. So it's a peculiar thing."

Among Spence's findings so far:

People will rate the very same yogurt 15 percent tastier and more expensive when sampled with a silver spoon rather than a plastic spoon or a lighter (by weight) option.
Combining a heavier bowl with a heavier spoon will tend to make yogurt taste better.
Plastic packaging or plate ware that's more rounded will tend to emphasize sweetness.
Angular plates tend to bring out the bitterness in food, which works well for dishes like dark chocolate or coffee-based desserts, Spence says.
People will rate cheeses as tasting saltier when eaten off a knife, compared to a toothpick, spoon or fork.
In general, foods tend to be perceived as more enjoyable when eaten off heavier plates and with heavier cutlery – perhaps because heft is equated with expense.

Such research isn't merely academic, Spence says. Food companies use these kinds of studies to inform how they package their products. And in a world where modernist chefs already pay lots of attention to how foods are arranged visually on the plate, cutlery, he suggests, presents a new frontier for fine dining.

Spence has already teamed up with some of the world's top modernist chefs, using their restaurants as real-world settings to test findings from the lab. Working with Ferran Adria, the culinary superstar behind Barcelona's now-shuttered elBulli, Spence tells us, he learned that strawberry mousse tastes "10 percent sweeter and 15 percent more flavorful on a white plate than on a black plate."

Take a bite of the "Sound of the Sea" dish and listen while you chomp. Photo: adactio / Flickr

And this summer, Spence says, he'll explore how ridged spoons impact the dining experience at The Fat Duck, the restaurant run by British celebrity chef Heston Blumenthal. A previous collaboration between the two resulted in The Sound of the Sea, in which diners eat oysters and other seafood while listening to an iPod playing the sounds of crashing waves. It's become a signature dish on Fat Duck's tasting menu.

"Maybe in a year or two," Spence tells The Salt, "we will have signature cutlery associated with this chef or that."

Copyright 2013 NPR.

silver spoonsilver spoon

Your Choice In Utensils Can Change How Food Tastes