
A perfectly cooked single-serving of rice with just this mug and a microwave, no rice cooker needed.
Japanese lifestyle brand 3 Coins gets its name from the fact that most of its items are priced at just 300 yen (US$2.15), meaning that you can pay for them with three 100-yen coins. Just like with 100 yen stores, though, some of 3 Coins’ wares carry a slightly higher price. We were willing to drop a few more coins, though, when we found out about a very convenient handy kitchen gadget that 3 Coins is selling for 550 yen (US$3.95).
It’s called the Kitinto One-Person Rice-cooking Mug, and though it looks like a lidded coffee cup at first glance, what it’s really for is making rice, and it lets you make a single-person serving in the microwave, with no dedicated rice-cooking appliance required.
The mug can be used to cook 150 grams (5.3 ounces) of rice, and after adding the uncooked grains you first attach the outer lid only.
▼ The outer lid
The outer lid’s slats let you pour in water to wash the rice, and also let you drain the water off without worrying about accidentally pouring out any rice. Once the rice is washed, remove the outer lid, add water up to the making on the inside of the cup, and then attach the inner lid first, and the outer lid on top of it.
▼ Diagrammed steps showing the outer lid (外蓋) and inner lid (内蓋)
3 Coins then says to let the rice soak in the water for 20 to 30 minutes (20 minutes in summer and 30 in winter), then put the mug in the microwave to cook for 10 minutes. Once that time is up, take the mug out and let it sit for 20 minutes to finish steaming, and when you open up the lid, you’ll have a cup full of freshly cooked rice!
The rice is soft, fluffy, and flavorful, on-par with what the results we get from making rice in a rice cooker.
From start to finish, it takes about an hour to make rice with 3 Coins’ mug, so you’re not really saving a whole lot of time. If you’re just making a single serving, though, there’s a lot less to wash, since the mug is compact and has just three parts, and while we decided to be classy and transfer our rice into a bowl before eating, you could actually just eat right out of the mug, giving you even one fewer thing to wash. The Kitinto One-Person Rice-cooking Mug is also a fraction of the price of a dedicated rice cooker, which can easily cost over 10,000 yen, so if you’re looking to set up a home kitchen on a budget or without a lot of counter space, this lets you opt for just a microwave. It’s a great portable option too, since it allows you to cook rice anywhere you’ve got access to a microwave, and the single-person portion means that you’ll won’t have to worry about storing leftovers.
▼ You can also use the mug to cook takikomigohan, rice dishes where additional ingredients and seasonings are cooked together with the rice.
So while the 550 yen price tag means the Kitinto can’t be bought for 3 Coins’ regular price, we think it’s definitely worth the five and a half coins they’re asking for it, and it can be ordered online here.
Photos ©SoraNews24
Diagram: 3 Coins
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]









We zapped up some tasty hot sandwiches in the microwave with 3COINS’ new gadget from Japan
How to cook rice in a Ziploc container【SoraKitchen】
Japan’s one-person bento box-sized rice cooker can give you freshly cooked rice at the office
New Japanese bowl-shaped donburi rice cooker cooks rice and toppings at the same time
Japan goes beyond rice cookers with new curry rice cooker, the kitchen gadget we need right now
Japan triples departure tax, foreign tourists and locals now must pay more to leave country
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Don’t judge this Kiki’s Delivery Service book by its cover, because it’s not actually a book!
The quest for Dragon Quest Yoshinoya figure sets: Worth taking for fans, tricky for scalpers[Pics]
Starbucks Japan teams up with Converse Tokyo for a new limited-edition collection in honour of Tanabata
One Piece docking at Round 1 amusement centers in both Japan and the USA
Studio Ghibli releases a musical diorama based on a touching anime scene from My Neighbour Totoro
Japanese overnight sightseeing train returns for summer with ramen stops and ocean views
KFC Japan creates spicy summer fried chicken chips together with Calbee
Sanrio Character Poll announces winners, Hello Kitty absent from top 10 in many countries
Live-action Spirited Away stage play announces world tour with first-ever U.S. and Canadian dates
Tokyo has only two barley tea makers, and we visited one to see how mugicha is made
Blind Tokyo commuter explains the easiest place for him to stand while riding the train
Sleep at Hoshinoya Nara Prison, one of the most unique hotels in Japan
Pikachu brings electric style to brand-new Pokémon G-Shock watch featuring every stater trio
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Studio Ghibli store Donguri Republic announces opening of first-ever store in America
New Japanese overnight train coming to connect Tokyo with Tohoku in sleep-travel style
Japan launches first overnight Shinkansen bullet train between Tokyo and Osaka this summer
Japanese sweets shop sells an ohagi so exquisite it sells out by noon
Forget Tokyo go-karts – there’s a new way to sightsee on four wheels in Japan
Japanese sweets brand creates new drinkable Cigare and we’re totally here for it
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
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
How to make curry in a rice cooker with zero prep work and no water[Recipe]
We try Kaldi’s microwavable Omelet Rice to find out if it really cooks that easily【SoraKitchen】
Chicken McNugget rice cooker rice — Can it beat KFC rice cooker rice?【SoraKitchen】
We turn Japanese bamboo shoot rice dish into a delectable dessert【RocketKitchen】
Japanese mom cooking – A super easy recipe for daikon, Japan’s giant radishes【SoraKitchen】
Rice cooker cooking: Bacon onion rice is amazingly easy, awesomely delicious
Mr. Sato shows us what happens when you try to cook rice with only eggs 【SoraKitchen】
Japan’s one-person bento box-sized rice cooker gets double-decker version that cooks side dishes too
How to make amazing sweet apple pancakes using a rice cooker 【RocketKitchen】
Did you know your rice cooker is also a ramen rice cooker?【SoraKitchen】
New cooking gadget turns your kitchen into a Japanese izakaya pub all by itself【Photos】
New contraption from Japan lets you cook paper-thin egg omelets in your microwave
3 Coins sells Electric Cotton Candy Maker as part of its newly released summer festival series
Don’t throw out leftover rice! Testing to find the best rice freezing/microwaving container
Make fluffy Japanese omelettes in the microwave with this handy kitchen gadget
Japan’s pretty lifestyle brand made an ultra-cheap Switch controller, but is it any good?