Why Are Truffles So Expensive?

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Getty Images

Over the weekend, a 4.16 pound white truffle—the so-called "World's Largest"—sold at a Sotheby's auction for $61,250 to a phone bidder in China. It was actually a bargain price for the over-sized fungus. This year's large crop, a result of abundant rain in Italy, has seen wholesale prices drop by 50 percent from two years ago.

To figure out a little bit about why truffles are so expensive, we talked to Vittorio Giordano, the Vice President and Truffle Guru at Urbani Truffles USA. First started in Italy in 1852, Urbani now sells to 68 different countries.

Urbani's white truffles, which are rarer and more expensive than the black truffle, still come from Italy. (They can also be found in Croatia, but lately the Italian crop has been sufficient.)

"Truffle is a wild product, it is a natural product. It is not something you can cultivate or control," Giordano explains. This unpredictability contributes to the extreme prices truffles can fetch. People have tried for generations, to no avail, to farm truffles. And while recent attempts in the U.S. and Australia to recreate truffle-conducive habitats by planting chestnut, oak, and hazelnut trees have shown modest success, the crop has been insubstantial and rarely are full truffles salvageable.

Instead, Urbani works with a network of 18,000 people to hunt for truffles around Italy. "A single truffle hunter with a dog can find a small amount—two ounces, three ounces, quarter of a pound—so we need a lot of people to make sure we are able to collect quantity we need," he says. All those employees only drive the price up further.

It used to be the case that pigs took the place of the dog in that picture. Female—and only female—pigs were the original truffle seekers; the truffles smell like testosterone to the lady swine, making them easy and eagerly sought out.

There is a problem with swine, however.

"Pigs eat truffles. They don’t want to give the product back," Giordano says. So, dogs were trained to put their noses to use for the cause and all they ask in return is a treat from their handler. (In fact, use of the pig to hunt truffles has been prohibited since 1985 because they damage the truffle beds in their zeal to get to the scent.)

Once the truffle is unearthed—and a portion of the precious find is put back into the ground to act as a spore and repopulate—there's the matter of getting the truffle to a plate. Truffles immediately begin losing water to evaporation as soon as they're dug up. To combat that, no expense is spared to get the truffle where it's going. 

"The truffle we deliver to the restaurants and distributors, less than 36 hours before were underground in Italy," Giordano says. And the cost to make that happen adds up. Black truffles, the more common variety, currently cost about $95 per ounce while white truffles top the charts at $168 per ounce. But the much more reasonably priced truffle butter is pretty delicious, too.

Everything You Need to Know About Activated Charcoal

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iStock

Activated charcoal is everywhere. Touted in alternative health circles as a versatile treatment for almost anything that ails you, its proponents claim that it clears up your acne, treats inflammation caused by "toxic mold," draws out the venom from a snake bite, eases a hangover, halts your farts, removes "toxins" from your body, and brightens your pearly whites.

But there's little to no evidence for these claims. Though charcoal has a very long history as a folk remedy—ancient Egyptians used it as a treatment for "odorous vapors from putrefying wounds"—for the past century or so, its medical use has primarily been in emergency rooms to treat overdose and poisoning cases. In most cases there just aren't any clinical studies to test its efficacy for any other use. Not only that, but experts who spoke with Mental Floss caution that these treatments might come with added risks, too.

WHAT IS "ACTIVATED CHARCOAL"?

Activated charcoal isn't quite the same thing as the briquettes you use in your grill. Though they're both made of residue left from burning carbon-rich organic materials like wood, peat, or coconut shells, activated charcoal is oxygenated, which makes it far more porous. To activate the charcoal, manufacturers use steam or hot air to erode its internal surface [PDF], which increases the outside surface area along with its adsorption rate—the capacity to bind materials to a surface. Because of those adsorption abilities, charcoal has earned a reputation as a kind of bodily super-cleanser.

When you ingest activated charcoal, it works as a "gastrointestinal decontaminant," attracting various chemicals from your stomach and digestive tract, and then eliminating them from the body. That's why it's so helpful in cases of poisoning or drug overdose: It adsorbs the dangerous substance so it doesn't enter your bloodstream, then simply passes right on through—and out of—your system.

FROM E.R. TO GOOP

Activated charcoal had been popular in certain health food circles for years when, in late 2014, Gwyneth Paltrow's website Goop featured a "charcoal lemonade" sold by a Californian juice bar on a list of the best juice cleanses for "a good old-fashioned detox." Today, the substance can be found in everything from facial masks and odor-dampening comforters to a wide range of food and drink: Chefs are using activated charcoal to create pitch-black cakes, cocktails, pizza crust, and ice cream that's taking Instagram by storm.

The tiny bit of activated charcoal in the occasional cocktail probably won't do any damage—but it's not a good idea to take the substance on a regular basis, according to Rachele Pojednic, a professor of nutrition at Simmons College. "When you ingest it, you can't target what it's going to interact with," she says, "so if you’re on certain medications, you need to be really careful."

Some have never been on board with the stuff, including the FDA and the New York City Department of Health and Mental Hygiene, which recently started enforcing in restaurants a long-standing ban on activated charcoal. The agency—following FDA guidelines—considers it an "adulterated food."

IN CASE OF POISONING …

Aside from treatment for an overdose or poisoning, you don't need to take anything to "detox" your body: not a supplement, not a juice, not a soup. Nothing. That's what your liver is for.

"There's really no data to show that [activated charcoal] is going to do anything other than remove some pretty high-level ingested toxins" like the ones found in cases of poisoning or overdose, Pojednic says.

It's also dubious that activated charcoal can cure a hangover, as some alternative health practitioners recommend. "You feel a hangover because you're really dehydrated," she tells Mental Floss. "There's nothing in your system that needs to be extracted." While you might feel better after taking it, Pojednic says that's most likely because your hangover went away over time.

There are some risks associated with ingesting activated charcoal, too. Thanks to its adsorption abilities, charcoal can also take out all of the good chemicals in your system, including nutrients and the active ingredients in certain medications (like antidepressants) if taken around the same time.

BRUSH YOUR TEETH BLACK?

One of the most common products you'll find activated charcoal in is toothpaste; its advocates claim it whitens teeth. About a year ago, John Brooks, DDS, a dentist and researcher at the University of Maryland School of Dentistry, found himself getting questions from clinicians and students wondering what to tell their patients about activated charcoal toothpaste. He and two other professors reviewed the scientific literature and found that there's little evidence to support the claims of charcoal toothpastes because they haven't been tested. Brooks tells Mental Floss, "None of these charcoal toothpastes have undergone the rigors of scientific testing."

And, again, there are potential risks. While it's possible these toothpastes could whiten your teeth in the short term, they're so highly abrasive that they're likely to remove the enamel from your teeth too, which means your teeth won't stay white for long. Brooks also worries about patients regularly swishing known carcinogens—like silica and bentonite clay, which some charcoal toothpastes contain—around in their mouths. Moreover, he says, charcoal could potentially interfere with beneficial toothpaste ingredients, like fluoride.

IN THEORY, IT COULD HELP YOUR SKIN

The one cosmetic benefit of activated charcoal might be found in skincare products—maybe. As chemist Michelle Wong writes, "There isn't any good data on whether or not it works, but theoretically, it could work." It's possible activated charcoal's adsorption abilities could reach into your pores, pulling out the dirt and oils that get trapped there. But these products have not been rigorously tested, so we can't be certain about their efficacy. Wong also points out that activated charcoal typically takes several hours to have an effect, whereas most charcoal skincare products are applied for mere minutes.

The activated charcoal trend seems to be holding strong, despite the lack of evidence for its health claims. So eat that pitch-black ice cream every once in a while if you like, but don't count on it to improve your health.

Does Washing Your Fruits and Vegetables Really Do Anything?

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iStock

Washing produce is one of those habits that some people follow religiously and others shrug off altogether. If you're someone who struggles to find the motivation to cook in the first place, you might fall into the latter group. But cleaning your fruits and vegetables at home isn't just an outdated precaution: As Popular Mechanics reports, a thorough rinse could mean the difference between a meal that nourishes you and one that leaves you sick.

Produce is one common carrier of norovirus—a foodborne viral infection that triggers such symptoms as nausea, vomiting, and diarrhea. There's no way to know whether your lettuce is contaminated with harmful bacteria before it hits your plate, but cleaning it with plain tap water does make it safer to eat. According to USA Today, rinsing produce is effective enough to remove 90 percent of the pathogens left on it by the growing, harvesting, and shipping process. Rinsing is also a good way to remove any of the visible matter you don't want eat, such as grit and soil.

Cleaning your fruits and vegetables is definitely an improvement over eating them straight from your crisper drawer, but be warned that this isn't a foolproof way to avoid food poisoning. Water won't remove all the microbes living on the surface of your food, and even an extremely thorough rinse isn't enough to make produce contaminated with potentially deadly bacteria like E. coli safe to eat. But that doesn't mean the risk outweighs the benefits of including produce in your diet.

If you have a pile of veggies that need to be prepared for dinner, the best way to make them safer for consumption is to rinse them under cold water and rub them in a bowl of water, starting with the cleanest items and progressing to the produce that's more soiled. Give all the food a final rinse before moving it to the cutting board. Peeling the outside of your produce and cooking it when possible is another effective way to kill or remove stubborn bacteria.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

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