Turn over a bag of Japanese rice crackers in an American grocery aisle and find the manufacturer's address in the fine print. More often than not it names a city in Niigata Prefecture, on the Sea of Japan coast. Niigata rice crackers account for roughly half of everything Japan ships in the category, measured by value, and the prefecture has held first place for decades (Nikkan Kōgyō Shimbun; Shimizu 2013). The explanation that follows in almost every English-language write-up is that Niigata grows the country's rice, so it makes the country's rice crackers. Niigata's own government tells a story much closer to the opposite.

Beika is the US label for rice crackers made by Iwatsuka Seika, founded in 1947 in the village of Iwatsuka, now part of Nagaoka City in Niigata Prefecture (Iwatsuka Seika company history). Seventy-nine years of corporate life, nearly all of it in one valley. The category those crackers belong to, beika (米菓), is Japan's umbrella word for rice confectionery, and it is far older than any company working inside it. Iwatsuka's plants sit within a manufacturing cluster that is younger than the company itself, and that cluster exists because of work begun in a prefectural laboratory in 1958.

Key Takeaways: Niigata Prefecture has led Japan in rice cracker shipments for decades. In 2023 it accounted for about ¥180 billion of an approximately ¥352 billion national market, measured by shipment value, not volume (Niigata Prefecture; Nikkan Kōgyō Shimbun). Until around 1950 the industry belonged to Tokyo, Osaka and Nagoya, and Niigata was said to be unsuited to it, because rice cracker manufacture requires drying and the local climate is humid (Niigata Prefecture). What changed was a joint research programme started in 1958 by the prefecture's food research institute and the makers' cooperative, which turned an artisan's judgement into shared numbers.

Counting Niigata rice crackers properly: value, not volume

Japan's manufacturing surveys report the yen value of what a prefecture's plants ship. Every share figure below is therefore a share of money, not a count of crackers, and the distinction survives poorly in translation. Three dated readings, from three official publications, give the shape of the thing.

In 2010, Niigata's rice confectionery shipments came to about ¥170 billion, or 52% of the national total by value, against second-place Saitama at 6% and third-place Tochigi at 4% (Shimizu 2013). The gap is the finding there: first place held nearly nine times the share of second. By 2020 the prefecture's share had reached 62.4% on shipments of ¥218.6 billion, a figure its own public relations magazine drew from the 2021 Economic Census (Niigata Kenmin Dayori).

The most recent verified reading is 2023, and it is lower. Niigata shipped about ¥180 billion: the prefecture publishes ¥179.7 billion (Niigata Prefecture), a trade newspaper citing the same survey gives ¥177.6 billion, and the national total was roughly ¥351.6 billion (Nikkan Kōgyō Shimbun). Both readings put Niigata at about half the country's output by value, ranked first. Most English-language accounts give one rounded share with no year, which flattens this into a constant it has never been. The 62.4% figure is a 2020 high-water mark, not a current one.

What the share figure counts, and what it does not

It counts manufacturing. The number describes where rice crackers are made and shipped from, not where the rice inside them was grown, and those two claims get collapsed into one constantly in English writing about Niigata rice crackers.

Iwatsuka Seika describes its own business, in its own English, as the manufacture and sale of rice crackers "made from 100% domestic rice" (Iwatsuka Seika, English corporate page). Domestic means Japanese, sourced from across Japan. It began applying that standard to 32 products including its flagship lines in 2011 (Iwatsuka Seika). Niigata is where the industry sits and where Iwatsuka has stood since 1947. It is not a claim about the paddies of any one prefecture.

The prefecture was judged the wrong place to make them

Niigata Prefecture's account of its own food industry opens with a sentence that reads at first like a typographical error. Until around 1950, it says, the main producing areas for rice confectionery were the big cities of Tokyo, Osaka and Nagoya, and Niigata, for all its rice, was said to be unsuited to a manufacture that requires drying, because the climate is humid (Niigata Prefecture). The weather data behind that sentence is public, and it explains why Niigata rice crackers looked like a poor commercial bet.

Read the two snow columns separately, because they are different measurements and English writing fuses them constantly. The first is the sum of daily new snow across a year. The second is the deepest the snow ever lies at one time. Nagaoka is not buried under nearly five metres of snow; nearly five metres of snow falls on Nagaoka, and about 89 cm of it is on the ground at the worst moment (JMA, Nagaoka normals).

Winter is the wet season, not the dry one

The column that actually explains the prefecture's sentence is precipitation. In Nagaoka, December is the wettest month of the year at 372.2 mm, wetter than July at 235.0 mm in the middle of the rainy season, and January delivers 37.3 hours of sunshine for the entire month against 201.3 hours in May (JMA). Rice cracker manufacture depends on drying shaped dough to a specific point, the step covered in the drying stage in how beika is made. A plant working a Niigata winter is pulling water out of dough in the darkest, dampest weeks of its year.

None of which touches the rice. Niigata's paddy agriculture is genuinely exceptional, and the reasons are set out in our piece on why Niigata's rice itself is different. The argument about the rice and the argument about the factories are separate arguments. The second one is the one the prefecture had to solve.

What changed in 1958 was a laboratory, not the weather

Niigata's rice cracker industry developed as it did, the prefecture says, largely because of industry and academic joint research from the late 1950s between the prefectural food research institute, now the Food Research Center, and the Niigata Prefecture Rice Cracker Industry Cooperative (Niigata Prefecture). The economic geographer Shimizu Kiyoko dates it precisely. Joint research began in 1958 and took practical effect that December, when the cooperative ran a manufacturing technology training course for its members (Shimizu 2013).

Japan's first rice cracker research facility, 1960

In 1960, paid for by the prefectural budget and donations from the cooperative, the country's first research facility dedicated to rice confectionery was completed at the Center, and the work moved quickly after that (Shimizu 2013). What the programme produced was less a machine than a vocabulary. Cracker making that had been done by a craftsman's hand and intuition was quantified, and the resulting know-how circulated through cooperative-run technical courses, so member firms could hold a consistent standard rather than each guarding a private method (Niigata Prefecture).

That inverts the usual logic of where a factory belongs. Shimizu describes three location types in this industry: near the customers, which kept the business in Tokyo and Osaka until about 1964; near the raw material, where Niigata began, ranked third; and near the technical capability. For the third she reports the term used by Saitō Shōzō, the Food Research Center engineer who led the beika programme: gijutsu ricchi, technology location, an industry that beat a locational disadvantage with engineering (Shimizu 2013). Saitō's own account of it, cited by Shimizu, is a privately published memoir from 1982.

Fourteen companies, two cities, one prefecture

The cluster consolidated. It did not proliferate. Membership of the Niigata Prefecture Rice Cracker Industry Cooperative fell from 46 firms in 1969 to 16 by 2011 (Shimizu 2013), and the national trade association's current member directory lists 14 (National Rice Confectionery Industry Association). Roughly half of Japan's rice cracker output by value now leaves the plants of fourteen member companies.

Five names carry most of it, all headquartered in the prefecture and on that Niigata roster: Kameda Seika, Sanko Seika, Iwatsuka Seika, Kuriyama Beika, which trades as Befco, and Echigo Seika (National Rice Confectionery Industry Association). Two of them did not set out to make crackers. Kameda and Iwatsuka were founded during the postwar food shortage as contract processors turning rice and sweet potato into syrup and starch, in Kameda-machi and Iwatsuka village. Both switched to crackers around 1955, when large firms entered the syrup and starch business and squeezed them out (Shimizu 2013).

Geography inside the prefecture is tight. Plants concentrate around the Niigata City and Nagaoka areas, and almost all Niigata-headquartered firms site their domestic plants within the prefecture and run integrated production from raw material through to shipping. The larger firms installed continuous-flow lines in the 1960s, expanded onto neighbouring land in the 1970s, then bought consolidated plots in the 1980s for the main plants they use today (Shimizu 2013). "Almost all" is the study's own hedge and it is load-bearing: Iwatsuka's Hokkaidō plant, built in 1990 as the Chitose Plant and renamed in 2017, sits outside Niigata (Iwatsuka Seika).

Why Iwatsuka Seika is in Nagaoka

The company's own history begins with a labour problem, not a rice one. Iwatsuka village, now part of Nagaoka City, took heavy snow. Once the autumn harvest ended, people left for seasonal migrant work, dekasegi, and did not return until spring; almost no household got through a winter with the family together (Iwatsuka Seika). Two men who had been doing that work, Hiraishi Kinjirō and Maki Keisaku, wanted it to stop. Their stated aim, translated from that page, was to make the area "a place where people could make a living without going away to work."

So they built a food factory in a rice village in 1947, and the first thing it made was caramel from locally grown sweet potatoes (Iwatsuka Seika). Crackers came later, on the same commercial logic that redirected Kameda. The whole arc is set out in the full Iwatsuka Seika story.

Staying put in one valley carries a cost. At 5:56 pm on 23 October 2004 a magnitude 6.8 earthquake struck Niigata's Chūetsu region. Iwatsuka's plants sat close to the epicentre and sustained what the company describes as devastating damage (Iwatsuka Seika). It rebuilt where it stood. The head office address is still 2958 Iizuka, Nagaoka City (Iwatsuka Seika), in the same district the founders were trying to keep people in.

Both kinds of rice, and what that means in the bag

There is one technical trait the prefecture singles out as the cluster's defining advantage, and it shows up directly in what reaches an American shelf. Rice confectionery divides by raw material: mochigome, the glutinous rice steamed whole and pounded, and uruchimai, the everyday table rice milled to flour. Nationally, most firms are strong in one route or the other. Niigata's firms learned both, which let them supply whatever the market turned toward without retooling their identity each time (Niigata Prefecture).

Beika's six US crackers sit across both routes rather than on one. Sea Salt, Mame Mochi and Teriyaki are okaki, built from steamed mochi rice. Butter, Kinako and Black Bean are senbei, built from milled uruchi rice. Four read as traditional: Sea Salt, Black Bean, Mame Mochi, Kinako. Two read as modern: Teriyaki and Butter. A single company covering that range is not a marketing accident. It is the trait the prefectural government names when it explains why its cluster held on.

The last step to the snack drawer is recent and deliberate. In 2017 Iwatsuka established IWATSUKA USA Inc., wholly owned by the parent, expressly to develop business in the North American market (Iwatsuka Seika). The line from a snowbound village outside Nagaoka to a bag on a shelf in Los Angeles is short, and every leg of it is documented.

The cluster under pressure, 2026

The cluster has not settled into a comfortable ending. In January 2026 the Nikkan Kōgyō Shimbun reported that the reference trading price for table rice more than doubled between December 2023 and December 2025, driven by poor harvests linked to climate change and by fast demand growth including inbound tourism, and that the processing rice used for rice crackers fell into the same crisis (Nikkan Kōgyō Shimbun).

The paper names a second-order effect worth sitting with. When the price of table rice climbs, some farmers growing processing rice and mochi rice shift their planting to table rice instead, so the input gets more expensive and the number of growers falls at the same time. Tighter overtime rules for truck drivers have made distribution a serious problem on top of that (Nikkan Kōgyō Shimbun).

An industry that concentrated its plants inside one prefecture to gain scale and control is, in a tight raw-material year, concentrated in its exposure too. That is the shape of an industry, not of a legend, and it is the right shape for this one. Niigata rice crackers are not the product of a climate that suited them. They are the product of a place that decided, in 1958, to argue with its own weather and then wrote down what it learned.

Frequently asked questions

Where are most Japanese rice crackers made?

Niigata Prefecture, on the Sea of Japan coast, and it has ranked first nationally for decades. On 2023 figures the prefecture shipped about ¥180 billion of rice confectionery against a national total of roughly ¥351.6 billion, so about half the country's output by shipment value (Niigata Prefecture; Nikkan Kōgyō Shimbun). Plants concentrate around two areas, Niigata City and Nagaoka. That position is postwar and was engineered rather than inherited, which is the part most English accounts leave out.

Why is Niigata famous for rice crackers?

Not for the reason usually given. Until around 1950 the industry sat in Tokyo, Osaka and Nagoya, and Niigata was said to be unsuited to it, because rice cracker manufacture requires drying and the local climate is humid (Niigata Prefecture). The prefecture's own account credits joint research from the late 1950s between its food research institute and the makers' cooperative, which established the manufacturing technique and shared it through cooperative training courses so every member firm could hold a consistent quality.

What percentage of Japan's rice crackers come from Niigata?

It depends on the year, and it is always a share of shipment value rather than of volume. Niigata held 52% in 2010, well ahead of Saitama at 6% (Shimizu 2013), rose to 62.4% in 2020 (Niigata Kenmin Dayori), then sat at about half in 2023 (Nikkan Kōgyō Shimbun). Treat any undated single percentage with suspicion, including the rounded ones that circulate in English.

Which rice cracker companies are based in Niigata?

Five major makers are headquartered in the prefecture and listed on the National Rice Confectionery Industry Association's Niigata roster (member directory): Kameda Seika, Sanko Seika, Iwatsuka Seika, Kuriyama Beika, which trades as Befco, and Echigo Seika. The roster is a membership list, not a size ranking. It currently holds 14 member companies in total, down from 46 in 1969 and 16 in 2011 (Shimizu 2013). The cluster grew by consolidating, not by multiplying.

Does Iwatsuka Seika use only Niigata rice?

No, and the company does not claim to. Iwatsuka describes its business as the manufacture and sale of rice crackers "made from 100% domestic rice" (Iwatsuka Seika), meaning Japanese rice sourced from across Japan, and it records applying that 100% domestic standard to 32 products including flagship lines from 2011 (Iwatsuka Seika). Niigata is the company's home and the industry's centre of gravity. Even the manufacturing is not exclusively Niigata: Iwatsuka has run a plant in Hokkaidō since 1990.

Is Niigata Japan's biggest rice-producing prefecture?

Yes, by harvest volume and by planted area. The prefecture's own roster of national number-one rankings gives a paddy-rice harvest of 637,900 tonnes and a planted area of 117,700 hectares for the 2025 crop year, both first in Japan, drawing on the agriculture ministry's crop statistics published in March 2026 (Niigata Prefecture). The same sheet puts the value of the prefecture's rice output at ¥206.9 billion for 2024, also first in Japan. Being the country's largest grower is a separate fact from being its largest cracker maker, and this post is about the second one.

Sources & references

1. Niigata Prefecture. "新潟県の食品産業のすがた" (The shape of Niigata Prefecture's food industry). Page updated 9 May 2023. pref.niigata.lg.jp. Production centred on Tokyo, Osaka and Nagoya until around 1950 and the humidity objection; late-1950s joint research between the prefectural food research institute and the rice cracker cooperative; quantification of craft knowledge and its circulation through cooperative training; Niigata firms' command of both the mochi-rice and uruchi-rice manufacturing routes.
2. Niigata Prefecture. "新潟県あれこれ 全国ベスト５ ～新潟県の日本一～" (Niigata's national number-ones). PDF, last updated 30 April 2026. pref.niigata.lg.jp. Rice confectionery shipment value of ¥179.7 billion for 2023, citing the Ministry of Internal Affairs and Communications and METI 2024 Economic Structure Survey published August 2025; paddy-rice harvest of 637,900 tonnes and planted area of 117,700 hectares for the 2025 crop year and rice output value of ¥206.9 billion for 2024, all ranked first nationally.
3. Niigata Prefectural Public Relations Division. "統計で見る！新潟県日本一," Niigata Kenmin Dayori No. 164, Autumn 2023. niigata-kenmindayori.com. Rice confectionery shipment value of ¥218.6 billion and a national share of 62.4% for 2020, citing the 2021 Economic Census of the Ministry of Internal Affairs and Communications and METI.
4. Shimizu Kiyoko. "新潟県における米菓産業の産地形成とイノベーション" (Regional formation and innovation in Niigata Prefecture's rice confectionery industry), Journal of the Society for Industrial Studies, Japan, No. 28 (2013), pp. 119ff. Japanese-language, no English edition. J-STAGE full text. The 2010 shipment value of about ¥170 billion and 52% national share against Saitama's 6% and Tochigi's 4%; the 1958 start of joint research and the December 1958 training course; the 1960 completion of Japan's first rice cracker research facility; Saitō Shōzō's "technology location" characterisation; the consumption-location, raw-material-location and technology-location framework; the postwar syrup and starch origins of Kameda and Iwatsuka and their move into crackers around 1955; plant clustering and integrated production; cooperative membership falling from 46 firms in 1969 to 16 in 2011.
5. Japan Meteorological Agency. Climate normals for 1991 to 2020: Nagaoka, Niigata City and Tōkamachi. Annual cumulative snowfall and annual maximum snow depth as separate measurements; January mean temperature; monthly precipitation and monthly sunshine hours, including Nagaoka's December precipitation of 372.2 mm against July's 235.0 mm and January sunshine of 37.3 hours against May's 201.3 hours.
6. National Rice Confectionery Industry Association (全国米菓工業組合). Member directory. National Rice Confectionery Industry Association member directory. The Niigata Prefecture Rice Cracker Industry Cooperative's current membership of 14 companies, and the roster of Niigata-headquartered members.
7. Iwatsuka Seika Co., Ltd. "沿革" (Corporate history). iwatsukaseika.co.jp. The founding account, including winter migrant labour, the founders Hiraishi Kinjirō and Maki Keisaku and their stated aim; 1947 founding and sweet-potato caramel as the first product; the Chitose plant of 1990, renamed the Hokkaidō Plant in 2017; the Chūetsu earthquake of 23 October 2004; the 2011 adoption of 100% domestic rice across 32 products including flagship lines; the establishment of IWATSUKA USA Inc. in 2017.
8. Iwatsuka Seika Co., Ltd. English corporate page. iwatsukaseika.co.jp/english. The company's own English description of its business as the manufacture and sale of rice crackers made from 100% domestic rice, and the head office address at 2958 Iizuka, Nagaoka City, Niigata Prefecture.
9. Tanaka Kaoru. "地域経済の今（1）新潟の米菓産業　コメ調達・物流に苦慮," Nikkan Kōgyō Shimbun, print edition 27 January 2026. estate.nikkan.co.jp. National rice confectionery shipment value of about ¥351.6 billion for 2023 with Niigata at about ¥177.6 billion, roughly half, citing METI's 2024 Economic Structure Survey; the more than doubling of the reference trading price for table rice between December 2023 and December 2025; farmers switching processing-rice and mochi-rice plantings to table rice; distribution pressure from tightened driver overtime rules.