
“Get ready for the arrival of a new era of big burgers,” the slogan promises, but does it deliver?
When it comes to burgers, our Japanese-language reporter Seiji Nakazawa holds one restaurant chain in higher esteem than the others — Burger King. For Seiji, no other burger comes close when it comes to pure, unadulterated beefy patties. Just as their restaurant name suggests, they really are the kings of meat when it comes to hamburgers.
Burger King have provided the team at SoraNews24 with many a beefy blessing in the past, and their latest offering promises to be overflowing with meaty goodness, as it’s a three-tiered creation called the ‘Big Mouth‘ burger.
▼ The Big Mouth burgers (1,080 yen [US$9.80])
The Big Mouth comes in two varieties — Cheese & Cheese which, as the name suggests, has cheese slices between the layers, and Super Spicy, with layers of jalapeño hot sauce sandwiched between the patties. Never one to shy away from spicy opponents, Seiji opted for the latter.
“Get ready for the arrival of a new era of big burgers,” the slogan promised, and Seiji felt the power of Burger King’s overwhelming confidence. This was it! This would be the big burger he had always dreamed of! Would he be able to handle the intimidating size of the Big Mouth?
▼ The Super Spicy Big Mouth From Above (2021)
As Seiji plated up the Big Mouth burger, he couldn’t help but feel a little bit let down. The burger seemed a lot smaller than the mammoth burger that he was promised. Was this really the harbinger of the new era of big beef burgers?
Seiji also bought Burger King’s classic Whopper Burger for comparison. The Whopper is on the left, and even in this picture it seems to tower over the Big Mouth, despite the Whopper having only one beef patty compared to the Big Mouth’s three. Yet the Big Mouth was some 400 yen (US$3.60) more expensive… What was going on?
We here at SoraNews24 take our taste investigations very seriously, especially when they come to towers of unbridled beef, so Seiji decided to compare the two burgers more thoroughly by dismantling them.
First up were the buns. The Whopper on the left was definitely bigger than the Big Mouth, without a doubt. But Seiji is not one to make hasty conclusions — the Whopper’s bun size may be giving off the illusion that it’s bigger than the Big Mouth, but as we all know, it’s what’s on the inside that counts.
So how do the patties themselves compare? Will the Whopper patty triumph here as well?
▼ Spoiler — it’s a tie.
The Whopper and Big Mouth patties are more or less the same size, meaning you’re essentially eating three Whoppers-worth of meat with every Big Mouth. Phew!
With his brief investigation over, Seiji finally sunk his teeth into the Big Mouth, and his initial feelings of disappointment were quickly replaced by an overwhelming rush of joy. The patties were so immensely meaty, Seiji felt like he had been punched in the face with a beefy fist. The sheer volume of delicious meat in the patties, a veritable hurricane of beefy decadence that swallowed up the buns in its path — this is why Burger King is the king of the meat world.
So while it may not seem to be a monster of a burger at a glance, the Big Mouth reminds us that when it comes to food, it’s best not to judge too quickly. Unless you’re actually planning to eat like a judge, in which case, go ahead!
Photos ©SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]







Burger King Japan goes viral for its new Big Mouth Dirty, but is it really worth the hype?
We try Burger King Japan’s CooKING Burger @Home, use up lots of stuff in our fridge
Burger King Japan’s new Plant-Based Whopper tastes amazing
Burger King Japan’s Cheeseburger Gelände — exceptional in taste, size and… paper napkins?
Burger King Japan’s crazy patty-only menu item: Depressing, delicious, or both?【Taste test】
Tokyo subway installing new ticket gates that don’t accept payment through Suica or other IC cards
Japanese Shinkansen becomes an overnight hotel for three nights this summer
99-year-old woman rescued while attempting to climb Mt. Fuji
Giant Evangelion Spear of Longinus to be installed at Japanese train station with Eva art trains
Starbucks Japan releases a miniature display rack so you can create your very own store at home
New Shinkansen luggage drop-off system begins in Japan, making train travel even easier
Kodama Shinkansen trains on popular Japan route get a whole new look this winter
Japanese Coo-Che becomes a viral sensation, and everyone wants a taste
Which country’s foreign tourists spend the most money per-person in Japan? Hint: Not the U..S. or China
Face lettuce appears in Japan, with the face of Death Note’s Light Yagami, but why?
Japan now has human refrigerators inspired by Japanese vending machines
Studio Ghibli releases anime T-shirts that pay homage to one of Hayao Miyazaki’s most personal films
Hatsune Miku collaborates with Hokusai’s art in new Vocaloid ukiyo-e illustration series [Pics]
Japanese convenience store releases Japanese convenience store-flavor fried chicken
Family Mart’s new Tokyo flagship convenience store doesn’t feel convenient, but is that a problem?
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Japan triples departure tax, foreign tourists and locals now must pay more to leave country
Family Mart opens new “Famima” flagship store in Tokyo that’s like a tourist attraction
Sanrio Character Poll announces winners, Hello Kitty absent from top 10 in many countries
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
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
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Eating Burger King’s “hottest meat wall” ever 【Taste Test】
Make a Burger King Whopper at home with new CooKING Burger @Home delivery set
What’s it like to eat Burger King Japan’s protection from evil Whopper?【Taste test】
What does a Burger King Whopper with nothing but 20 slices of cheese taste like?
Is Burger King Japan’s new Crown The One Pounder really that hard to eat?
Burger King releases new Whopper to ward off evil in Japan
Burger King releases new Plant-Based Whopper in Japan
Burger King’s Controversial Anime Viewing Burger: Rip-Off or Work of Art?
We tried Japan Burger King’s Deluxe Chicken Whopper for some serious volume 【Photos】
Burger King Japan’s Strong Magma Super One Pound Beef Burger has us quaking in our boots
Burger King’s new Tokyo Teriyaki Tower is Japan’s newest meat wall【Taste test】
Plant-based burger battle: Burger King Japan vs. Freshness Burger【Taste test】
Burger King releases a Shrimp Whopper in Japan for a limited time
Kyoto Whopper divides customers at Burger King Japan
Burger King Japan creates Kyoto Whopper, its most Japanese burger ever, with Kyoto rice merchant
We try Burger King’s first-ever bunless burger in Japan