Kombu DNA Study: Four Japanese Kelp Names, One Gene Pool
Rausu, Rishiri, hosome, ma-kombu: four kelps sold under four names and four price tiers. A Hokkaido University team read the DNA of 475 plants and found no genetic line between them.
Rausu, Rishiri, hosome, ma-kombu: four kelps sold under four names and four price tiers. A Hokkaido University team read the DNA of 475 plants and found no genetic line between them.
Warming seas pushed a pufferfish north across the Tsugaru Strait, and the hybrids do not fit Japan's 1983 table of edible species and parts. How the rulebook caught up, and why the Mediterranean has the same gap.
Murakami's salmon run fell from 55,000 fish to 1,400 in a decade. Now the town is spending about $32,000 to attempt what Norway and Chile have not: closing the life cycle of chum salmon entirely on land.
A kawakawa hybrid made bluefin tuna sperm at eight months, and rainbow trout now spawn Chinook salmon yearly. Inside Japan's 20-year surrogate broodstock effort and Kindai's 32-year tuna project.
SUSHI BUS puts a working conveyor-belt sushi lane on the upper deck of an open-top double-decker and sends it around Tokyo from October 2026. Seventy minutes, all you can eat, 20 seats.
Pacific fishing nations agreed on August 18, 2026 to raise the quota for bluefin tuna over 30 kilograms by 25 percent, to 14,836 tons in the western Pacific, and to cut the quota for juveniles by 6 percent.
Japan's 2025 seafood output fell to 3,577,400 tonnes, the lowest since 1956, while FAO puts world production at 235 million tonnes. Comparing quota rules with Norway and the US shows why fewer fishermen isn't the answer.
Kewpie sets up an Indian sales company in September 2026. In the US, egg yolk is what legally makes mayonnaise mayonnaise. In India, egg is what earns the non-vegetarian mark. Same ingredient, opposite verdicts.
Japan's calorie-based food self-sufficiency fell to a record-low 37% in fiscal 2025 while the production-value measure rose to 66%. A 48% rise in rice prices moved both. By production value, Japan ranks above the US.
Japan's food exports hit 897.7 billion yen (about $5.7 billion) in the first half of 2026, a record. Green tea rose 83.5% and yellowtail 69.0%, but the yen was 5.5% weaker, so about half the growth was currency.
Sensitive teeth affect roughly a third of adults in some surveys, and the usual fix is to seal the surface over. A Tokyo Dental College team has shown that 6-MSITC, a compound in Japanese wasabi, pushes dentin-building cells to lay down new tissue instead. It began with a question asked at a sushi counter in Kanda.
The only machine on Earth that cuts pumpkins into deliberately irregular 'rangiri' pieces. How Hokkaido's Synthemec cracked the paradox, then brought its parts in-house to win on precision and lead time, against an industry built for uniform cuts.
The crab stick in your salad or sushi roll traces back to a small town on Japan's Noto Peninsula, where it was invented as one of the country's great postwar food breakthroughs. The global surimi market is worth several billion dollars, roughly half of it crab sticks. Riding a wave of fish-eating and high-protein diets, kanikama is spreading fast, so why is Japan's surimi know-how so hard to imitate, and how is it sold abroad?
Nissin launched the first-ever cold-water-only Cup Noodle on July 20. Its patented Cold Rehydrate technology turns fridge-chilled water into chewy noodles in 5 minutes. Here's how Japan, birthplace of instant ramen, keeps reinventing it.
The 1910 Asakusa shop credited with inventing soy-sauce ramen and spreading the '-ken' naming culture is back. As ramen overtakes sushi with global tourists, the founder's great-great-grandson revives a legend.
Japan saw a record 36 ramen shop bankruptcies in the first half of 2026. While the world pays $18 a bowl, shops in ramen's homeland collapse against a cultural price ceiling of 1,000 yen (about $6). Here is the structural squeeze behind the paradox.
Japan has rewritten its seed law to add ten years to breeders' rights and let officials block exports even before a variety is registered. We unpack the bill enacted on July 17, 2026, the suspected leak of Ehime's premium citrus to China, and why the 2020 version left a hole that fruit pirates walked right through.
Japan estimates the leak of its Shine Muscat grape to China and South Korea costs about $120 million a year. We unpack how a missed registration deadline, a strawberry precedent and a too-late seed law left one of Japan's best fruits unprotected abroad.
Foreign visitors spent ¥2.07 trillion (~$12.9B) on food in Japan in 2025, 21.9% of all inbound spending. What 42 million tourists eat, the dietary-diversity gap, and how to plan a gourmet trip.
On June 19, 2026, Iizaka Onsen in Fukushima launched a town-wide all-inclusive plan: one ¥25,000 passport for 16 inns, 13 baths, and 25 shops, with local sake, disc gyoza, and day-baths on the house. A look at a shrinking spa town's bet on a whole-district tourism model.