It's called kosher salt because it works for curing kosher meat

Salt is harvested from briny ocean water and underground deposits

Mostly sodium chloride, this compound is produced for human use by collecting seawater in shallow pans and allowing the Sun to evaporate the water until crystals remain. Underground rock salt is mined, crushed, and purified from deposits left behind by ancient seas that have dried-up.

Explaining why salt should be used to season food early in the cooking process

Experiments involving the same dishes, with salt added at the start of cooking versus at the end, have been shown to yield drastically different taste outcomes because salt takes time to diffuse into foods, particularly vegetables, whose cells are surrounded by cellular membranes and walls. Salting at the end will produce a concentrated surface coating, rather than even seasoning.

How five of the world's most expensive salt and spices are made

Part of the charm of certain spices and salts is their exotic origin, hailing from difficult-to-access locales or hewn via special processes. That also explains why they can be so expensive. Dive into the businesses of producing and marketing five of the world's most expensive food additives with this engaging video.

The Great Salt Lake's distinct dual coloration results from high-salinity organisms that only live in the northern portion and produce a purple protein.

Manhattan's tiny wire allowing orthodox Jews to carry things on the Sabbath

An 18-mile wire known as an "eruv" encircles most of Manhattan, allowing observant Jews to carry things within its boundaries. This wire is one of many Sabbath workarounds rooted in the ancient rules for resting on the Sabbath day. Every week, a worker inspects the eruv line, and its maintenance costs $100K a year.

Ketchup, 101

Ketchup is a tomato-based condiment mixed with vinegar, salt, and spices. The word likely originates from Southeast Asia, where it was used for a common fish brine sauce in the 18th century. For a brief period in the early 19th century, ketchup was viewed and marketed as a medicine. Henry John Heinz formulated a standard recipe in the late 1800s.

How the methods of catching fish for food affects their taste

Commercially caught fish are often killed through suffocation, allowing the causing the fish extreme stress and flooding their bodies with stress hormones and lactic acid. These chemicals cause the fish's flesh to become bitter where it was once rich and quickens the rotting process.

No one's sure why it's spelled 'sundae'

There are several different folktales explaining the origins of the popular ice cream dish and its curious name. One claims an enterprising pharmacy used chocolate syrup instead of soda, which was banned on Sundays. Another claims the dish's unique spelling was to avoid offending religious folks who might object to an unholy reference to the Sabbath.

How chefs suspend liquid in edible pearls resembling caviar to introduce a new texture to fluids

Through spherification, drops of a solution of sodium alginate and a flavored liquid are placed in a calcium lactate solution, which forms a chemical skin around them. This is because calcium replaces the sodium in the alginate chains, forming a gel around each drop's liquid interior.

Why Christians eat fish on Fridays during Lent

The rule isn't actually to eat fish—it's to abstain from eating warm-blooded animals on Fridays, the day of the crucifixion. Fish filled the gap because it was cheap, plentiful, and theologically convenient. As it happens, the medieval Catholic calendar's proliferation of meatless days became one of the drivers of the global fishing industry.

What's the difference between an ocean, sea, and saltwater lake?

What are the seven seas, the five oceans, and why isn't the Dead Sea considered a sea? This overview provides definitions for each.

Monosodium glutamate is a sodium salt form of a naturally occurring amino acid

Monosodium glutamate myths originate from a 1968 letter to the New England Journal of Medicine, in which unpleasant symptoms after eating Chinese food were dubbed Chinese restaurant syndrome without medical data. Subsequent studies show this savory flavor enhancer—found in tomatoes, mushrooms, and other foods—is safe in moderation.

The food processing techniques developed for World War II, later repurposed for consumers

Research projects funded or sponsored by the military led to the development of active dry yeast to make bread easier to bake and an improved version of dehydrated cheese, which would be used in powdered cheese snacks. Freeze-drying, which had been used to ease the transport of blood plasma to battlefields, where it would be reconstituted with water, was later used on fruit for cereals.

The Borscht Belt was a haven for Jewish vacationers—and comedy fans

New York’s Catskills region resorts were informally named after a dish popular with Ashkenazi Jews. The area offered affordable vacationing, as well as cutting-edge stand-up from future stars like Milton Berle, Mel Brooks, and Joan Rivers.

Pig organ transplants are apparently kosher—you just can’t eat them

Science writer Mary Roach speaks with journalist Terry Gross about her latest book, “Replaceable You: Adventures in Human Anatomy” and discusses topics including why pig organs have become of such interest and what religious leaders have told her about pig organs and compliance with Jewish dietary law.

How hash functions encrypt stored passwords and can be enhanced with 'salt'

Hash functions convert text into unique, random sets of characters, a process that is computationally expensive and time-consuming to undo. Because hashed outputs for many common passwords are publicly listed, some sites use a salt—additional characters appended to a password—before hashing to produce an output that is not known. When entering a password, it is salted and hashed, then checked against the database for a matching hash before permitting login.

In the US, 'organic food' is defined by the USDA

Food products can only be classified as “organic” if they meet the standards defined by the US Department of Agriculture. For crops, that means avoiding prohibited substances and genetic engineering, among other requirements. For livestock, that includes a minimum number of grazing days.

How cultured meat is made

In recent years, a number of companies have debuted meatless alternatives to traditional burgers, chicken, and more. Some are made from soy, while others use molecular formulations to recreate the flavor profile and texture of meat. Now, actual meat...

Hanukkah is one of 8 major Jewish holidays

This calendar, maintained by the Reform Judaism organization, not only shows when each holiday is to be celebrated in the current year, but also includes short histories and common rituals.

Funazushi takes 3 years to prepare

Funazushi is a type of honnare (sometimes spelled hon-nare or called narezushi) sushi. Unlike nigirizushi, the quicker form that's commonly found in restaurants, honnare is preserved over a long stretch of time. Mariko Kitamura, who runs a funazushi shop in Takashima City, Japan, describes the dish as a "fish version of prosciutto" with a saltiness that's similar to caviar.

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

What is salvia divinorum?

After centuries of use by Mexican spiritual healers, Salvia divinorum is surging in popularity in the U.S. — and the government has taken notice.

Typhoid smells like freshly baked brown bread

Certain ailments are associated with documented scents, including diabetes, Parkinson's disease, and typhoid. The skin of people with yellow fever, for example, can smell like a "butcher shop."

Low-and-slow smoking transforms tough cuts into tender, flavorful cuisine

Cooking meats at low temperatures over many hours breaks down muscle proteins and collagen into gelatin, making the meat juicy and soft. Patience, gentle smoke, and moisture retention are needed to avoid dry or chewy results.

The history and significance of rosemary

Rosemary is more than just an herb—it’s a powerful symbol intertwined with ancient Egypt, Christianity’s origins, Shakespeare, the culinary arts, and more. Native to the Mediterranean area, this plant has accompanied humanity for centuries, providing us with pleasant aroma, adornment, and even medicine. Explore this article for further insight into the significance of our long-standing relationship with rosemary.

Words used in cannabis business names

As selling recreational cannabis becomes legal in many states across the US, cannabis dispensaries are increasingly common. While one might expect each of these dispensaries to have vastly different names, one study found that the names have some consistent similarities. Businesses with "beach vibes" or "green" in the name seem particularly common. Explore the full data visual here.

Satire is an artistic form that aims to make someone or something look ridiculous

In practice, satire is often used to criticize vices, social norms, or political decisions, and is typically intended to be humorous. Although it can take many forms, its common characteristic is that its ultimate purpose is to discredit its target.

Budweiser stores yeast derived from the original 1800s strain in a secret bunker, which only the Head of Yeast Management can access—not even the CEO

'Shogun,' a 1980s TV series, helped popularize sushi in the US by stimulating an American interest in Japanese culture.

The word 'jazz' evolved from 'jasm,' 19th-century American slang for 'energy'

The history of many kitchen appliances involves unexpected discoveries and applications, including wartime radar turned hamster defroster and replacing an 'ice king' with heat-stealing boxes.

Hookworm infection, though risky, may help fight certain autoimmune conditions by tamping down the immune system's inflammatory response.

Poison ivy is in the same family as mangoes, cashews, and pistachios—and they all produce oily urushiol in their raw, unprocessed state—but they are typically prepared in ways to avoid causing human discomfort.

Sunflowers have long been a symbol of nuclear disarmament because they can extract large amounts of radioactive cesium from soil.

Pure water does not conduct electricity because this flow of energy requires the movement of charged particles, and water is a neutral molecule.

Waves off the coast of Nazaré, Portugal, can reach over 100 feet and are caused by the area's deep underwater canyon geography

Some Pokémon have been named after real and fictional organisms, while some real-world species have been named after Pokémon, such as Chilicola charizard and Binburrum zapdos.

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.

'Silent' fireworks have gained more interest in recent years as a quieter celebratory option.

Take a 3D tour of the Hajj, Islam's annual pilgrimage to Mecca, undertaken by over 1.5 million Muslims.

The hormonal disorder PCOS was renamed PMOS in 2026, a move designed to improve care and research by shifting the focus to the hormonal causes of this condition that affects 1 in 8 women.

El Niño, Spanish for 'the boy,' was named after Jesus Christ because the phenomenon resembled the weather changes observed around Christmastime.

The term 'algorithm' originated from the Latinized name of al-Khwārizmī, a 9th-century mathematician whose works introduced Arabic numerals and the decimal-based numeral system to Europe and whose treatise 'Al-Jabr' gave algebra its name.

The Ramones' 'Pet Sematary,' the theme song for the Stephen King novel of the same name, was written while the band was admiring the writer's collection of horror memorabilia.

Some coin denominations have ridges etched on their sides, partly to prevent counterfeiting, in a practice called 'reeding.'

Lesser-known phobias include turophobia, or the fear of cheese, and nomophobia, the fear of being without your cell phone.

Volcanic activity may have triggered the Black Death by spewing gases that led to crop failures in Europe, thus forcing the import of grain ships with plague-infested fleas.

Search a massive database of over 4 decades of clues from the TV quiz show 'Jeopardy!'

Hotels in Cannes, the glamorous city on the French Riviera, hire hawks to ward off seagulls during the city's famous film festival.

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.