Okaisan / chagayu (tea-simmered rice porridge)
Throughout the prefecture
In Wakayama, chagayu is affectionately called 'okaisan' or 'okayusan'...
WAKAYAMA
The surveyed city is Wakayama. Of all 394 items in the household survey, Wakayama Prefecture stands out most for Crab — 3.7× the national average (Wakayama 1,311 g / national 355 g).
RANK
All figures are annual spending/quantity per household (not per person). 2023–2025 average, showing Wakayama’s value as a multiple of the national average.
| Item | vs. average | Wakayama | National | Rank |
|---|---|---|---|---|
| CrabSeafood | 3.69× | 1,311g | 355g | #2 |
| Dried baby sardines#1Seafood | 2.47× | 928g | 376g | #1 |
| PeachesFruit | 2.38× | 2,503g | 1,050g | #4 |
| Pickled plums (umeboshi)#1Dried Foods, Seaweed & Soy Products | 2.29× | 1,447g | 632g | #1 |
| Mandarin oranges#1Fruit | 1.72× | 13,140g | 7,621g | #1 |
| Dried shiitake mushrooms#1Dried Foods, Seaweed & Soy Products | 1.72× | 67g | 39g | #1 |
| BeefMeat | 1.61× | 34,171JPY | 21,217JPY | #2 |
| Sea breamSeafood | 1.51× | 1,543JPY | 1,024JPY | #13 |
| Horse mackerelSeafood | 1.45× | 921g | 633g | #11 |
| Lactic acid bacteria drinksBeverages | 1.40× | 8,072JPY | 5,757JPY | #3 |
| Grilled eel (unagi)Prepared Foods | 1.40× | 3,566JPY | 2,551JPY | #4 |
| MackerelSeafood | 1.40× | 1,160JPY | 831JPY | #5 |
#1
Items where Wakayama ranked #1 among the 52 surveyed cities.
LINK
Ingredients used in regional dishes here that also show up as standout spending in the household survey — cross-referencing MAFF's regional-dish database with Japan's Statistics Bureau data.
Main ingredients: Glutinous rice, mandarin orange, sugar
→ Mandarin oranges is 1.4× the national average in Wakayama (6,494 JPY, #1 nationally)
Main ingredients: Moray eel, soy sauce, sugar, and others
→ Soy sauce is 1.2× the national average in Wakayama (4,728 mL, #2 nationally)
Main ingredients: Rice, grilled mackerel, carrot, freeze-dried tofu, dried shiitake mushroom, fried tofu, chikuwa fish cake, konnyaku, bamboo shoots
→ Dried shiitake mushrooms is 1.1× the national average in Wakayama (406 JPY, #16 nationally)
Main ingredients: Sweet potato, glutinous rice
→ Sweet potatoes is 1.1× the national average in Wakayama (1,417 JPY, #12 nationally)
DISHES
From Japan's Ministry of Agriculture, Forestry and Fisheries (MAFF) “Regional Dishes to Pass on to the Next Generation.” Each dish name links to the MAFF page.
Throughout the prefecture
In Wakayama, chagayu is affectionately called 'okaisan' or 'okayusan'...
Southern region
A packed lunch food from the fishing- and forestry-heavy southern part of the prefecture, easy to eat during breaks in busy fishing or mountain work...
Central region
In 1249, the eminent monk Kakushin of Yura is said to have brought the recipe back from Song-dynasty China, where he had trained...
Taiji Town
Whales that fatten up feeding in high-latitude waters head to lower latitudes after summer ends to breed...
Southern region
From late October through March, Pacific saury ride the cold current down from off Sanriku to spawn in the Kumano Sea...
Northern region
Sesame tofu originated at Mount Koya, founded by Kobo Daishi (Kukai) about 1,200 years ago, as sustenance for monks during rigorous ascetic training...
Arida region
Long made as a festival food for local celebrations; fish preserved with rice through fermentation...
Around Tanabe City
Commonly called 'budai,' igami is a signature rocky-shore fish of the prefecture's southern region, though it can carry a distinctive fishy smell in summer...
Southern region
Known as the 'gangster of the sea,' the moray eel is aggressive and armed with sharp upper and lower teeth...
Minabe Town, Tanabe City
In the Edo period, poor land unsuitable for rice cultivation was exempt from land tax; the Tanabe domain of the Kishu clan...
Katsuragi Town, Kudoyama Town
The Ito region along the Kinokawa River is a famous persimmon-growing area, with Kudoyama Town known for fuyu persimmons and Katsuragi Town for tanenashi persimmons...
Hidaka region
In the Hidaka region, 'kakimade gohan' has long been served at celebrations, memorial services, the Doll Festival, festivals, and other gatherings...
Iwade City, Kinokawa City
The Naga region, in the eastern part of the Kinokawa plain, grows rice alongside persimmons, peaches, and other crops suited to its climate...
Northern and southern regions
Grilled, flaked fish along with shiitake mushroom, carrot, and egg are layered over sushi rice...
Northern and central regions
Whitebait fishing peaks from late March through May; during this season, catches from around Tomogashima off Wakayama City...
Arida City
Wakayama is one of Japan's leading mandarin orange producers, particularly Arida, the home of Arida mikan...
Northern and southern regions
The boar has long been worshipped as a god of agriculture, said to visit the fields on the first day of the boar in the second lunar month...
Southern region
In the areas along the Kumano Sea, a narrow strip of flat land runs along the coast with mountains rising close behind...
Kozagawa Town
A clear soup made with a shiitake and kelp dashi, containing tofu and shiitake mushroom...
Central region
Wakayama is one of Japan's leading producers of peas, grown in Inami, Hidakagawa, Minabe, Gobo, and Mihama towns and cities...
Southern region
'Gonbachi' is properly known as itadori, a knotweed-family plant that grows wild in the mountains come spring...
Wakayama City
In the soft sandy soil areas along the Kinokawa River, such as Kasai and Nunobiki in Wakayama City, the mild climate favors ginger cultivation...
Arida City
Cutlassfish is caught throughout Wakayama, especially in the Kii Channel off Minoshima Fishing Port in Arida City...
Hashimoto City
'Hatagonbo' is a burdock variety grown in the Nishihata district of Hashimoto City, on the slopes of 552-meter Mt. Kunigi...
Tanabe City
Named for a legend involving Prince Morinaga, son of Emperor Go-Daigo, also known as Otonomiya...
Yura Town
The coast from Hi-no-Misaki to Wakayama City faces the Kii Channel, rich in seafood...
Aridagawa Town
In the Arida region, this sushi has long been indispensable for seasonal events such as rice planting, Obon, and autumn festivals...
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