
Collaboration with one of Japan’s favorite sake breweries won’t get you drunk, will make you happy.
Out of the hamburger chains in Japan, Mos Burger is often considered the most quintessentially Japanese of the bunch. The chain offered rice burgers decades before its rivals McDonald’s and Lotteria copied the idea, and Mos routinely makes use of traditional Japanese flavors and ingredients in its sandwiches, like with the decadent sukiyaki burger.
So it’s only fitting that Mos Burger will also be offering the most Japanese milkshake flavor possible: sake.
In an announcement that’s bringing smiles to the faces of sweets fans and sake fans, Mos has let it be known that they’re bringing back the Dassai Shake, a team-up with Asahi Shuzo. Not to be confused with Asahi Breweries (the company that makes Asahi Super Dry beer), Asahi Shuzo is a relatively small sake brewery in the town of Iwakuni, Yamaguchi Prefecture, that produces Dassai, one of Japan’s most delicious and widely popular brands of sake.
The Dassai Shake was offered for a very limited time last year, going on sale for just 10 days in late December until all the ingredients for 200,000 shakes were used up. As for what those ingredients are, the shake starts with a Mos vanilla shake base, which is then mixed with amazake, a type of non-alcoholic sake with a creamy flavor and texture. Dassai’s amazake still has the delicate sweetness and clean finish of its alcoholic-version counterpart, in part because it’s made with the same Yamada Nishiki rice. The Dassai Shake also contains a sweet Dassai sauce that makes the drink more flavorful as you stir it, and the finishing touch is a pinch of Patagonian salt to keep the aftertaste crisp.
As a completely non-alcoholic beverage, the Dassai shake can be enjoyed even by drinkers who aren’t “drinkers.” It’s 380 yen (US$3.30) for a small or 450 for a medium, and at those prices definitely worth it, considering how great the one we had last year was. This year’s batch, which will also be available only in limited quantities, goes on sale December 28, just in time for Japan’s New Year’s holiday season, and if you see a branch flying the Dassai banner pictured above, it’s a sign that the drink is still available there.
And should you miss out, and are old enough, you can always drown your sorrows with the standard Dassai sake.
Source: PR Times via Japaaan
Top image ©SoraNews24
Insert images: PR Times
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
Follow Casey on Twitter for more reasons Iwakuni is awesome.



Mos Burger teams up with Dassai sake brand for a very unusual milkshake
Japan’s Mos Burger Dassai sake milkshake is here, but is it any good?【Taste test】
Sake milk shakes return to Japan’s Mos Burger with the Shinsei Dassai Mazeru Shake
Sake brand Dassai increases workers’ starting pay by over 40 percent, pledges to double salaries
Mos Burger brings back sake shakes, business manga, and vintage websites all at once
Starbucks Japan closing only Shinkansen platform branch for popularity-triggered renovations
Pokémon and Ikea Japan cross over into each other’s worlds with collaboration events
Two food hacks take Japan’s convenience store fried chicken to amazing new sandwich heights
Animal Crossing plushie pouch towels and cozy socks show up at Family Mart convenience stores
Can a downtown Tokyo super sento bathhouse beat a hotel for a one-night stay?
Tokyo teahouse serves up a sakura matcha dessert you won’t find anywhere else
Beautiful Ghibli earrings allow you to finally reunite two of the studio’s star-crossed lovers
Osaka icon loses legs, restaurant says famous crab is exhausted
Why is Yoshinoya called Yoshinoya?
Japan’s prime minister exchanges Dragon Ball kamehamehas with president of France[Video]
Tokyo’s best museum for foreign travelers finally reopens after being closed for four years
Pokémon lacquerware series expands for Year of the Horse with new handcrafted design[Video]
Famous Tokyo cherry blossom spot installs view-blocking screens to fight overcrowding[Video]
Tokyo subway and almost all Tokyo train lines now accepting credit card tap payments
Fading Tokyo – Searching for signs of the Showa era as local neighborhoods evolve[Photos]
Totoro Fund line of beautiful artwork and apparel lets you help the real-world Totoro Forest
Tokyo turns its phone booths into free Wi-Fi hotspots, and here’s how to use them
Studio Ghibli adds new My Neighbour Totoro 2026 Corn Gift to its anime store for Mother’s Day
Japan now has a special desk for people who work at home with a pet cat[Photos]
Uniqlo announces new T-shirts for One Piece, Naruto and more for manga publisher’s 100th birthday
Train station platform ramen store closes its doors on half a century of history in Tokyo
Starbucks Japan releases new My Fruit³ Frappuccino at only 34 stores around the country
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Krispy Kreme releases Super Mario doughnuts in Japan for a limited time
Japanese onsen egg maker from 100-yen store Daiso needs to be on your shopping list
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
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
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
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
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
Mos Burger x Dassai sweet sake collaboration expands with new rice burgers and a konjac drink
Makers of Dassai to brew sake in space and sell 100 milliliters for 100 million yen
Japan’s most popular sake brand runs full-page ad asking people to stop paying so much for it
What are the ten most popular Japanese sake brands? New poll reveals the favorites of sake lovers
Sake bread and cakes, using one of Japan’s best brews, can only be bought at one Tokyo bakery
New Sweet Sake Pocky showcases the flavour of a centuries-old Japanese sake brewery in Tokyo
You can now visit Evangelion’s Misato’s apartment dining room in real-life Tokyo
Dassai sake matcha truffles bring two esteemed Japanese companies together for limited time
Alcoholic sake butter appears in Japan
We try a curry milkshake at Mos Burger Japan 【Taste Test】
New Dassai sake parfait crashes reservation system in Japan
Mos Burger brings out a Mac and Cheese burger in Japan
Mos Burger adds sliced bread to their menus in Japan
Mos Burger opens new online store dedicated just to frozen rice burger bulk buys
Godiva creates a new drink with Japanese sake starter