
In Japan, rice balls can be flavored with almost anything, so we decided to make some from the most exclusive seasoning of all: salt made from Mr. Sato’s sweat!
If you want to, you can get pretty fancy when making rice balls, called musubi or onigiri in Japanese. Gourmet ingredient choices include unagi (freshwater eel) or ikura (salmon roe), both widely considered delicacies in Japan.
On the other end of the spectrum, though, you’ll find more pedestrian fillings such as salmon or bonito flakes. The most basic rice balls of all, though, are shio musubi, which are just rice balls with a dash of salt.
Simple as they may be, shio musubi can actually be quite refreshing and tasty, especially when made with high-end salt. So in taking the local food movement to its ultimate extreme, we made our own salt, sourced from the sweat of RocketNews24’s intrepid Japanese-language reporter Mr. Sato.
Step one, of course, was to obtain a sufficiently sized sweat Sato sweat sample. While we could have just cranked up the heat in the office, we instead sent Mr. Sato over to Shinjuku’s Kabukicho, one of Tokyo’s largest bar districts which, like all night life centers in Japan, has a number of saunas. After stripping off his clothes, our reporter spent 10 minutes sitting in the sauna, wiping himself off with a towel as he sweat away. He then stepped out for a two-minute rest before going back in for another 10-minute stint, eventually doing six cycles and thus spending a cumulative hour in the sauna.
He then stuck the towel he’d been using the whole time in a Ziploc bag, brought it back to the office, and wrung it out into a bowl.
Having never made salt from human sweat before, we weren’t entirely sure if we had enough raw material to work with, but we poured what we had into a frying pan, then switched on the burner to cook off the moisture.
The liquid soon began to bubble, and before long it evaporated, leaving behind a pale powder that had to be salt! Well, we suppose there’s also the chance that there were some granular dirt and other random particles mixed in, but setting aside purity levels, we now had a batch of Sato-sourced sodium.
After waiting for the pan to cool down, but before making the rice balls themselves, Mr. Sato decided to try his signature seasoning. Since it came from him, it must be perfectly suited to his palate’s natural preferences, right?
So he put a little on his fingertip…
…took a lick…
…and found out that it had an even stronger salty taste than he’d expected! Mr. Sato described the effect as “condensed salt,” with a concentrated effect similar to condensed milk.
Oh, and it also stank like a sweaty Mr. Sato, which maybe we should have expected.
But of course, some seasonings only reveal their true deliciousness when they’re used to accent the taste of other foods. So the next order of business was to scrape the salt out of the pan.
▼ It was only then that we realized that Sato Salt isn’t white, but a troubling yellow in color.
Then, Mr. Sato got to work shaping two rice balls, which was really the only part of this day in the kitchen that wasn’t gross.
Once that was done, Mr. Sato took a pinch of Sato Salt and sprinkled it across the top of his two triangles of rice.
Then, it was time for the moment of truth.
And the truth was terrible.
For a brief split-second of the first bite, the Sato Salt shio musubi tasted like an ordinary salt-seasoned rice ball. The salty tones are punishingly strong, though, and then there’s the smell, and taste, of sweat. And no, you don’t get used to it as the meal goes on. In fact, the more you eat,the harder it becomes to block out the fact that you’re eating crystalized perspiration.
Just to make sure Mr. Sato’s negative reaction wasn’t the result of some subconscious self-preservation mechanism that prevents people from thinking their own body would taste good, Seiji, the bravest of our Japanese-language reporters in the office that day, also agreed to try a lick of Sato Salt in a taste test we recorded.
So in conclusion, yes, you can make salt from your sweat, and yes, you can use it to season musubi. That doesn’t mean you should, though, even if you’re Mr. Sato.
Images: ©RocketNews24
[ Read in Japanese ]
























Around Japan in 47 rice balls: Mr. Sato buys each prefecture’s musubi all from one Tokyo shop
Japanese convenience store’s newest rice ball filling: Nothing at all, and why we’re OK with that
The world’s most famous sushi restaurant sells seaweed too, so we made nori rice balls with it
Watermelon-looking rice balls go on sale in Tokyo, bring Mr. Sato bitter memories of regret
Rice balls aplenty at the Ministop senbero, but with a special twist【Japan’s Best Home Senbero】
Japanese temple burns to the ground, fire burning inside for 1,200 years unharmed
Krispy Kreme Japan is bringing two special donuts to the most-forgotten big city in the country
Starbucks Japan hoping fans will go bananas for its new mottainai banana affogato Frappuccino
Man in Japan calls in bomb threat because he doesn’t want to go to his own work farewell party
Japanese vending machine find introduces us to a new drink you can’t get anywhere else
Japan has a new cute and clever sunblock for cat lovers
Memorial bell inside Hiroshima’s Peace Park has been silenced, but for a sweet reason
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
Japan’s izakaya pubs closing at record pace, failing to attract foreign tourists
Pizza Hut Japan’s drinkable curry pizza is here – Is it all we dreamed it would be?[Taste test]
Kanji ice cream becomes a sell-out hit in Japan
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
Hundreds of rose bushes in bloom at Tokyo’s off-the-beaten-path, next-to-the-tracks flower street
This Tokyo Station sweets sensation sells out daily, but we finally got our hands on it
Studio Ghibli’s president is leaving the company. Will it change how they make anime?
161-year-old Kyoto confectionary maker releases new edible Pokémon lineup
Let’s hike a Japanese mountain (that isn’t Mt. Fuji) – Mt. Tsukuba[Photos]
The average age of Japan’s hikikomori shut-ins is getting older, survey shows
Japan enters Golden Week vacation period, survey shows one in three plan to ride it out at home
New Kyoto Converse sneakers celebrate Japan with traditional kimono fabrics for your feet
Japan’s new Pokémon jackets give you the look and powers of the Kanto starter trio
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
Japan now has gyoza doughnuts, and they taste like no other doughnut we’ve tried before
Studio Ghibli launches huge new anime movie T-shirt collection with special design details
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Weiner Onigiri: Japanese convenience store rice ball has a surprise in store for Mr Sato
Which Japanese convenience store has the best salted onigiri rice balls?
What are Japan’s best, and most unique, regional rice balls?
The best-selling rice ball at Family Mart is…SPAM onigiri?
The 10 best types of onigiri rice balls to try in Japan【Survey】
Is anime making otaku eat less rice? Government launches Girl Running Late with Rice Ball Project
Japan Railways recently revealed ramen-style rice balls in its convenience stores
Mr. Sato uses cooling spray on his crotch, learns a valuable lesson
7-Eleven under fire in Japan for mysterious holes in their onigiri rice balls
Which Japanese convenience store has the best plain onigiri rice balls?
My Neighbor Onigiri-kun – Ghibli’s Toshio Suzuki draws character for rice ball salt packaging
The surprising semi-secret ingredient in many Japanese convenience store rice balls: oil
Top Japanese instant noodle maker steps up its rice ball game 【Taste test】
Coffee-infused rice for rice balls and curry? Taste-testing a recipe from Japan’s coffee experts
Mr Sato drinks stinky Pond Water Cider from Japan
Say hello to the Big Bomb Onigiri, a beast of a Japanese rice ball