
Whether you love it or won’t go near the stuff, there’s no denying that natto is an important part of the Japanese diet. The fermented soybeans are notorious for scaring foreigners away with their pungent odor and sticky strands. If you’re someone who’s not convinced that natto could ever taste good, then keep reading: Japanese corporation Takara Tomy Arts has recently announced a new product that guarantees the ultimate natto dining experience. Introducing the new Natto Flavor Enhancing Machine.
The new device (fully dubbed the “Natto Flavor Enhancing Machine (The height of flavor ~ Rosanjin Natto Mixer)”) was developed based on the ideas of Kitaoji Rosanjin (pseudonym), a prominent Japanese gourmet and artist of the early twentieth century. Rosanjin wanted to discover the ultimate method for eating delicious natto, and established that the more it is stirred, the more delicious it becomes. Maybe all the natto-haters out there just aren’t stirring it enough…
▼A typical pouch of opened natto, where you must stir in the soy sauce and mustard by yourself.
▼The new device. Put natto inside, turn the handle, and watch it stir at lightning fast speed!
Furthermore, Rosanjin determined that stirring natto 424 times brings out the maximum possible flavor (we’d love to know how he arrived at such an arbitrary number…). Following this principle, the new product counts the number of times that the gears are turned, and adds soy sauce at the perfect moment (after 305 times, in case you were wondering). After the 424th stir, the lid will automatically pop open to signal its completion. This ready-to-eat natto is said to be a perfect blend of full-bodied flavor.
In a survey conducted within the firm, natto stirred 424 times within this device enhanced the flavor by 109% compared to typical hand-stirred natto. Takano Foods, the biggest name in the natto industry, has also given the new device its seal of approval.
▼The gears count the number of revolutions, so the lid pops open automatically after 424 times.
The “Natto Flavor Enhancing Machine” will go on sale on February 6 for 2,310 yen (US$22.08). Whether you normally love or hate natto, why not give it a try? You may be pleasantly surprised.



Eat Japanese cuisine like an epicure with the updated Ultimate NTO natto mixer from Takara Tomy
Think you know your weird news from Japan and Asia? Take our weekly quiz and find out!
Are Japanese convenience store sandwiches scamming us with their fillings?
The next time you’re feeling stressed out, you could relax on a Pokémon Psyduck chair from Japan
Starbucks Japan releases new My Fruit³ Frappuccino at only 34 stores around the country
We asked our Japanese team of writers how they deal with seasonal allergies in Japan
Train station platform ramen store closes its doors on half a century of history in Tokyo
Japanese man drives truck that’s on fire directly to fire station, drops flaming potatoes[Videos]
Japanese convenience store sandwiches get extra protection from new business backpack
7-Eleven Japan’s giant fried chicken skewer would be too big to eat, so it’s really for cuddling
Pizza Hut Japan’s new ie-kei ramen pizza is here and weird, but is it tasty too? [Taste test]
Is Daiso’s microwave Japanese rolled omelet maker worth your time and money? [Taste test]
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Starbucks Japan opens new cafe and art gallery in top Tokyo tourist neighbourhood
Virtual idol Hatsune Miku redesigned with look that adds new elements and brings back old ones
Studio Ghibli adds new Mother’s Day gift sets to its anime collection in Japan
Komachi Shokudo: Japanese mum’s-style cooking for breakfast, lunch and dinner in Tokyo
The top 10 graduation songs in Japan as chosen by current Japanese high school students
Pizza Hut Japan teams up with creator of one of the country’s best kinds of ramen for ramen pizza
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
Japan’s cherry blossom season predicted to start earlier than we’d thought, especially in Tokyo
Starbucks Japan releases a new Cream Puff Frappuccino for a limited time
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
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
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
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