A Simple Trick to Prevent Your Guacamole from Browning

iStock.com/Roxiller
iStock.com/Roxiller

So you’ve found the perfect guacamole recipe to whip up for your Cinco de Mayo party. There’s just one tiny problem: If you get stuck with leftovers, you’ll have to polish off those chips and dip pretty quickly before the mashed-up avocados start to turn an icky shade of brown.

While this may not be the worst problem to have, there’s a simple way to extend your guacamole’s shelf life, according to TheKitchn’s editor-in-chief, Faith Durand. Once your guacamole has been prepared and placed in a bowl, add a little bit of water until a thin layer covers the top. Durand, who is also a cookbook author, acknowledges that this may sound odd or unappetizing to some, but “water is a perfect barrier against oxygen, and since guacamole is dense, a little liquid won’t water it down.”

When you’re ready to eat the guacamole, just dump out the water and stir it up. Durand says you won’t notice any difference in texture, and the guacamole will keep for up to three days, making it perfect for multiple snacking sessions.

Adding the avocado pit to your bowl of pre-prepared guacamole can also technically help prevent “fruit rust,” as Live Science puts it, but it isn’t a very sound method. This is because it only protects the little bit of guacamole it touches by shielding it from oxygen. So while the areas surrounding the pit will be green, the rest will be brown. “Recommending that someone leave the pits in a bowl of guacamole to prevent browning is a bit like recommending that people cover their heads tightly with their hands to prevent their hair from getting wet in a rainstorm,” Eli MacKinnon writes for Live Science.

The internet is also rife with “kitchen hacks” for preserving whole avocados, but like anything else, some are more effective than others. If you’re going to cut an avocado and only eat half of it, Epicurious recommends eating the half without the pit. That’s because the pit, once again, can help keep your avocado green for a longer period of time. For good measure, squeeze a little lemon juice onto the surface of the exposed avocado and then cover it with plastic wrap. You can do the same for guacamole, and it should keep for at least a couple of hours as long as the plastic wrap tightly hugs the surface of the guacamole.

[h/ The Kitchn]

Cheese Made from Celebrities' Microbes Is On View at London’s Victoria & Albert Museum

iStock/bhofack2
iStock/bhofack2

London's Victoria & Albert Museum is home to such artifacts as ancient Chinese ceramics, notebooks belonging to Leonardo da Vinci, and Alexander McQueen's evening dresses—all objects you might expect to see in a world-famous museum. However, the cultural significance of the selection of cheeses now on display at the museum is less obvious. The edible items, part of a new exhibition called FOOD: Bigger than the Plate, were cultured from human bacteria swabbed from celebrities.

Though most diners may prefer not to think about it, bacteria is an essential ingredient in many popular foods. Beer, bread, chocolate, and cheese all depend on microbes for their signature flavors. Scientists took this ick factor one step further by sourcing bacteria from the human body to make cheese for the new exhibit.

Smell researcher Sissel Tolaas and biologist/artist Christina Agapakis first conceived their human bacteria cheese project, titled Selfmade, in 2013. When a chef and team of scientists recreated it for the Victoria & Albert Museum, they found famous figures to donate their germs. Blur bassist Alex James, chef Heston Blumenthal, rapper Professor Green, Madness frontman Suggs, and The Great British Baking Show contestant Ruby Tandoh all signed up for the project.

A display of the human-microbe cheese at Victoria & Albert museum
The Victoria & Albert Museum

Once the celebrities' noses, armpits, and belly buttons were swabbed, their microbiome samples were used to separate milk into curds and whey. The curds were then pressed into a variety of cheeses: James's swab was used to make Cheshire cheese; Blumenthal's, comté; Professor Green's, mozzarella; Suggs's, cheddar; Tandoh's, stilton.

The cheeses are being sequenced in the lab to determine if they're safe for human consumption. But even if they don't contain any harmful bacteria, they won't be served on anyone's cheese plates. Instead. they're being kept in a refrigerated display at the Victoria & Albert Museum.

Museum-goers can catch the cheeses and the rest of the items spotlighted in FOOD: Bigger Than the Plate from now through October 20, 2019.

The Reason Why We Pour Milk Over Cereal

iStock.com/tomasworks
iStock.com/tomasworks

Sometimes, if a movie or television show wants to communicate how unusual a character is, they’ll depict them pouring a box of cereal into a bowl and then adding some kind of disgusting liquid—orange juice, water, coffee, possibly alcohol. This is an easy way to illustrate someone's eccentricity because everyone knows only milk goes in cold cereal. With no exceptions. Even warm milk, which a small number of individuals enjoy, has to be more palatable than the alternatives.

But is milk the acceptable choice for cereal because it’s the best, or because of something else? Is there a reason we don’t simply drown Frosted Flakes in water and call it a day?

The state of our cereal bowls can be traced to the origins of cereal itself. Back in the mid-1800s, Americans were enjoying very hearty breakfasts of bacon, eggs, meat, and other foods that could easily show up on their dinner plates. Many complained of gastrointestinal upset, a condition that health experts (many of them self-appointed) began to refer to as dyspepsia. This ill-defined malady was thought to be the result of consuming massive meals in the morning. Advocates argued that breakfast should be lighter and healthier, comprised of what they considered simple and easily digestible foods.

One such proselytizer was James Caleb Jackson, a vegetarian who ran a sanitarium called Our Home on the Hillside in Dansville, New York. At the time, sanitariums for health were considered retreats and a way to adopt healthier eating and exercise habits. Jackson was a follower of Reverend Sylvester Graham, the inventor of graham crackers and a man who believed the crackers could help curb sexual appetites that flamed in the meat-eating population. In the 1870s, Jackson began to market a product he called granula—graham flour that was baked, crumbled, and baked a second time. The tiny pebbles of flour were hearty and filling.

There’s some debate over whether it was Jackson or his mother, Lucretia, who actually came up with granula. In her son’s newsletters dating back to 1867, Lucretia published recipes for what amounted to the same thing. But whichever Jackson came up with it, there was a problem: Eaten dry, the granula was like trying to swallow construction rubble. In the newsletter, Lucretia cautioned that the cereal had to be soaked in milk or warm water, presumably to make it palatable. Other accounts of granula have consumers soaking it in milk overnight in order to make it chewable. People sometimes referred to it as “wheat rocks.”

Granula developed a following, but it wasn’t until another sanitarium owner named John Harvey Kellogg mimicked the recipe that it truly caught on. Kellogg, who owned the Battle Creek Sanitarium in Battle Creek, Michigan, offered granula for its purported health benefits but referred to it as granola to avoid any legal entanglements with Jackson. By 1889, Kellogg was selling two tons of granola a week. By 1903, more than 100 cereal companies were operating out of Battle Creek. Kellogg, of course, became famous for his far more appealing Corn Flakes (which he invented because he thought they would curb masturbation).

Even as cereal became more processed and softer, the tendency to soak it in milk never left the public consciousness. Milk was the perfect way to add moisture to the dry food without turning it into a completely soggy mess. Like cereal, milk was also synonymous with health, full of vitamins and calcium. In a 1922 newspaper ad for Corn Flakes, Kellogg’s exhorted the wonders of the combination, offering that:

“With cold milk and luscious fresh fruit, Kellogg’s are extra delightful—so crisp, and appetizing.”

One scientific study published in the Journal of Food Science in 2011 even found that the fat in milk attached itself to the surface of cereal, helping to ward off moisture and keep cereal crunchier for longer than if it were immersed in water.

Of course, milk is no longer required to soften the bricks Lucretia and John Jackson were peddling. Culturally, we’re still predisposed to keeping milk and cereal part of a two-hand breakfast option. Had Lucretia advocated for coffee, orange juice, or something else, things might have turned out differently. And much soggier.

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