
We find out if this sell-out hit product is worth the hype.
Onigiri rice balls are commonly made by hand in Japan, but they can be difficult to create, especially when the rice is hot as it makes it hard to hold, distorting the shape. That’s where rice specialists Akomeya are here to help, with an exclusive rice ball mould that’s so popular it sells out every time it becomes available.
According to reviews from customers, the mould helps to make beautiful onigiri that look like something you’d buy at a fancy department store. There are two sizes available, small and large, and as we were curious to find out if the mould lived up to the hype, we played things safe by opting for the smaller version.
▼ Sylvanian Families characters not included.
First impressions were undeniably good, as the cypress wood had a beautifully fresh, woodsy aroma. This not only adds flavour to the rice but helps to improve it, as the wood absorbs excess moisture so you can enjoy the rice in its optimal state.
To use the mould, first moisten it with water and then fill the cavities with rice up to the halfway point. Then add your favourite filling, like an umeboshi pickled plum, as seen on the left of the image below, before covering it with rice (right, below).
Though the rice was piping hot it had no trouble settling in place and the filling stayed put in the centre which was impressive, seeing as it can move about a bit during hand-moulding. To determine which was better — wood-moulded or hand-moulded — we crafted a rice ball by hand, using cling wrap to keep our fingers clean and fashion it into a triangular shape.
▼ The rice was very hot to hold, even through the plastic wrap.
Comparing the completed rice balls, we found that the rice balls made with the mould (right, below) had a more beautiful shape.
Upon tasting them both, the wood-moulded onigiri (right, below) won yet again, as the grains of rice were noticeably fluffier. Looking closely, you can see that the grains of rice in the hand-moulded variety are flattened, while the grains from the wood mould remained plump, despite being packed down quite tightly.
As for the filling, it seemed to be confined to one small section in the hand-moulded type, whereas the wood mould (right, below) helped to disperse it more evenly, creating a more well-balanced flavour.
We definitely preferred the wood mould, rating it higher in terms of the resulting flavour and texture of the rice ball. However, would it still do well with different ingredients?
▼ Left to right: Plum Chirimenjako (dried young sardines), Green Onion and Bacon, Cheese Okaka (finely chopped dried bonito flakes), Furikake (dried seasoning) with Nori (seaweed).
As you can see, the wood mould did a fantastic job yet again, but we did find it had one weakness — when you add rice that’s been blended with large ingredients, like green onion and bacon, it creates gaps in the rice ball, causing it to break apart when you hold it in your hand.
That’s easily fixed though, because instead of adding the ingredients to the rice before it gets to the mould, simply add them as a filling instead and you should have no problems.
▼ Oh, and you’ll want to have a rice scoop handy to help pat the rice in, as it’s hot to touch.
After using the mould, we can safely say it exceeded our expectations, so much so that we’re kind of lamenting the fact we didn’t purchase the larger size as well. Luckily for us, though, the large size is still an option as it’s now back in stock, along with the small version, after months of being out of stock due to popularity. It certainly is worth the hype, and deserves to be on your shopping list when visiting Japan, where you can purchase it at Akomeya stores and online, priced at 2,200 yen (US$15.11) for the small and 2,530 yen for the large.
Related: Akomeya Tokyo, Rakuten Market
Photos ©SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!











Which Japanese convenience store has the best salted onigiri rice balls?
Say hello to the Big Bomb Onigiri, a beast of a Japanese rice ball
The polite way to eat onigiri rice balls sparks debate online
Tapioca onigiri brings boba to the world of rice balls
Should you warm up your convenience store onigiri rice balls in the microwave?【Taste test】
Japanese beef bowl chain Sukiya’s 2026 Smile Box lucky bag basically pays for itself
Rakuten randomly offers 58 New Year’s osechi feasts in Japan, but did we get a star or a dud?
Evangelion original anime studio Gainax is now completely dissolved, Eva’s creator mourns ruined friendships
Real-world Nausicaa Ghibli anime glider completes its final flight in Japan【Video】
7-Eleven Japan has a hack for creating insanely delicious potato chip rice meals
Stamina-destroying “Paralysis Noodles” are Tokyo’s newest over-the-top ramen innovation
Pikachu, Kirby, Slime and Miffy served up as delicious dumpling delights【Pics, Video】
12 Japanese MLB players to be honored with manhole lids across the country
Tokyo all-you-can-eat tonkatsu pork cutlet restaurant is all we need for a happy meal
New Studio Ghibli exhibition brings anime movie magic to cities around Japan
Starbucks Japan ready to get Year of the Horse started with adorable drinkware and plushies【Pics】
Hayao Miyazaki says Happy New Year to Studio Ghibli fans with new art for Year of the Horse
We found possibly the quietest Japanese-style hotel in Tokyo’s bustling Shinjuku district
Cup Noodle tries an authentic Jiro-style ramen, but something’s not quite right
The best Starbucks Japan Frappuccinos we want to drink again in 2026
We revisited Sweets Paradise after a decade to see if Japan’s dessert buffet still delivers
That time Seiji called JASRAC to ask why he didn’t get paid royalties for his song being on TV
Japan’s oldest largetooth sawfish in captivity back on display in Mie Prefecture
Pizza Hut Japan’s hot lucky bags are perfect for a New Year’s pizza party
7-Eleven Japan starts new temporary luggage storage service in over 300 branches
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Starbucks teams up with 166-year-old Kyoto doll maker for Year of the Horse decorations【Photos】
Tokyo considering law requiring more trash cans following litter increase in heavily touristed area
Tokyo’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
Tokyo event lets you travel back in time, for free, to celebrate 100 years since Showa era start
Japan may add Japanese language proficiency, lifestyle classes to permanent foreign resident requirements
Sanrio theme park in Japan announces plans to expand into a Sanrio resort
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
Japan’s deadliest food claims more victims, but why do people keep eating it for New Year’s?
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
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
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
The Big Bomb Onigiri Japanese rice ball helps us conquer mountain race but conquers us in the end
Onikun: Epic onigiri so big they’re half demon, half rice ball
Lawson now sells old rice as “vintage” onigiri in Japan
Space Onigiri: Do these long-lasting Japanese rice balls taste any good on planet Earth?
The 10 best types of onigiri rice balls to try in Japan【Survey】
Japanese convenience store packs a whole bento into an onigiri rice ball
Onigiri without the nigiri – Japan’s traditional rice balls get an update
Which Japanese convenience store has the best plain onigiri rice balls?
Beyond rice balls: How to make an edible onigiri rice cat【Video】
The surprising semi-secret ingredient in many Japanese convenience store rice balls: oil
Japanese vending machine sells…onigiri cakes!?
The difference between onigiri rice balls in Tokyo and Osaka
Onigiri in Paris: Small lunch shop brings traditional Japanese rice balls to France
Drinkable rice balls appear in Japan, allow you to chug the country’s favorite snack on the go
SmartHan Rice Tubes Offer Japanese New Way to Snack! Is This the End of Onigiri?
Leave a Reply