“There’s an epidemic going around and we’re here making so…so is it the Nara Era?“
Now that Japanese primary and secondary schools throughout the country are temporarily closed due to the spread of the coronavirus, rumors have become rampant that there’s an excess of milk in the country and dairy farmers are on the verge of losing their businesses. Whether that’s true or not, many people have been trying to help by pitching in to buy more milk than usual. One way to use up vast quantities of milk is by turning it into a dairy product called so (蘇) that was consumed in Japan in ancient times. Consequently, social media accounts in Japan have been abuzz as people document their attempts to reproduce a recipe that’s now in vogue for the first time in 1,000 years.
▼ “I made so! It took about five hours.”
蘇作ってみた〜!!
— よねざわさかな (@E310316) March 8, 2020
5時間ぐらいかかったww pic.twitter.com/1NGtfsA8xU
The origins of so are masked in mystery but it is estimated to have been consumed by the nobility in Japan throughout the Asuka Era (circa 538-710 CE), Nara Era (710-794 CE), and Heian Era (794-1185 CE), a span of time which witnessed everything from the introduction of Buddhism to Japan to the moving of the country’s then-capital to Kyoto. No one quite knows the exact recipe anymore but a basic outline was referenced in the Engishiki, a book completed in 927 that contains a set of governmental regulations and customs:
“Boil down 1 to (an ancient unit of measurement; around 18 liters/4.76 gallons) of milk to get 1 sho (an ancient unit of measurement; around 1.8 liters/0.48 gallons) of so.”
With such limited instructions to go by–basically just heat milk and wait a number of hours before it starts to take solid form–many net users began experimenting with their own variations while cooking such as adding seasonings, simmering in a pan over different levels of heat, stirring in a mix of sugar and salt, and pairing the finished product with honey or black pepper before eating.
▼ “So and more so. The heating conditions between the two were a little bit different. You can tell by the difference in color.”
「蘇」と「蘇」です。
— 平松 サリー(料理研究家・ライター) (@sarisally1) March 8, 2020
加熱条件が少し違います。色の違いがお分かりいただけるだろうか。 pic.twitter.com/HwNtdqWyIc
▼ “From the right are regular so, milk tea so, and café au lait so.”
https://twitter.com/myk_589/status/1236653178843619328It also appears to be quite fluffy when cut:
https://twitter.com/mi_kaor/status/1236691790813466624Finished so is said to taste something like cheese, candy maker Fujiya’s Milky candy, or a slightly less sweet milk cake, but still noticeably different from western dairy products such as yogurt.
Japanese net users reacted to the culinary trend for the most part with intrigue but a few cracked skeptical jokes as well:
“I never imagined that the next big thing after bubble tea would be so…”
“It takes so long to make so. That must be why it was originally a food for nobles.”
“I can’t decide whether the people propagating this so boom are refining our culture to the next level or are just a bunch of idiots.”
“I tasted it at a restaurant in Kyoto once. It had a simple caramel-like flavor.”
“How about using up milk by taking a milk bath instead? You could easily get rid of about three liters that way.”
“蘇が蘇る–So is revived.” [Note: This is a fun bit of linguistic play. The kanji for so (蘇) is the same one used in the root of the verb yomigaeru (蘇る/to be revived).]
If you find yourself with an excess of milk no matter where you are in the world, why not give making so a try? So will we.
Source: J-Cast News via Hachima Kiko
Featured image: Twitter/@sarisally1
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!

How to make so, Japan’s 1,000-year-old dessert recipe that’s back in fashion【SoraKitchen】
Hotel offers guests the chance to experience the 1,000-year-old lifestyle of the Heian Period
New Japanese overnight train coming to connect Tokyo with Tohoku in sleep-travel style
Japan’s cheap beef bowl chain goes upscale with Matsuya Premium, but is it worth the higher price?
7-Eleven Japan joins the craze for Korean Gamja Cheese Balls
Starbucks Japan releases special limited-edition summer drinks… at only 30 stores
Two of Kyoto’s famous temples tackle streetside trash with solar-powered trash cans
Lawson transforms convenience store food with massive katsu burger and an insane curry bread
East Japan Railway announces plans to abolish magnetic-strip tickets
Anne Hathaway creates PR frenzy in Japan after mentioning Tottori in Devil Wears Prada interview
New Square Enix Cafe reveals Final Fantasy, Dragon Quest, Nier, and Fullmetal Alchemist menu items
Luxury houseplant fraud leads to arrest of Takamatsu man
Japanese rice cooker recipe gives us a tasty new way to enjoy vegetables and wieners
Family Mart commits “reverse fraud” in new Giant All-Star Festival, and we couldn’t be happier
New Tokyo sweets shop offers 648 different mochi ice cream dumpling combinations
Even at twice regular Daiso price, this handy item is still great for summer travel in Japan
Ghibli’s No Face continues to demonstrate his generous character growth by dispensing soy sauce
Colour Hunting: The hot new street photography trend changing how we see Japan
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
Kanji ice cream becomes a sell-out hit in Japan
Uniqlo reveals third round of massive 100-year-anniversary manga T-shirts for Jump’s Shueisha
New official Ghibli anime food cookbook will teach you how to make Ponyo’s ramen and more
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
Japanese convenience store Lawson launches new “mini supermarket” chain, L Minimart
Japan’s real-world Pokémon hot spring’s first photos are here![Photos]
Kyoto public junior high school becomes first in Japan with a hoodie school uniform
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】
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
Pokémon and Ikea Japan cross over into each other’s worlds with collaboration events