
When it comes to food and drink, there really is no “right” way to enjoy it. Just as some will cringe at the very idea of munching on raw fish dipped in a little soy sauce, others will stare in horror and disbelief as their housemate smothers a baked potato in peanut butter (you know who you are). But when it comes to beer, as many foreigners visiting or living in Japan will no doubt attest, the fondness Japanese have for topping their drink off with an enormous amount of foam sometimes borders on the absurd. “It’s delicious!” Japanese colleagues tell me when I ask why a third of my beer is head. It may well be tasty, but when it takes three gulps of naught but white froth to reach the beer itself, you have to wonder if this is all some kind of hilarious practical joke that the entire country is in on.
But what about when drinking at home? Without a bartender to ensure that beer arrives with a thick head, how can the thirsty foam lover achieve the same results? Enter the Koku Awa beer pourer from Green House.
Due to go on sale from the beginning of June this year retailing for around 2,980 yen (US$30), the Koku Awa (lit. “thick foam”) clips directly onto any ordinary beer can, delivering thick, creamy foam with every pour, even in the comfort of your own home.
Powered by two AA batteries, the device features a unique ultrasound system that, activated by the flick of a single switch, injects tiny bubbles into the beer as it is poured. This may sound tremendously technical for what is essentially the act of decanting liquid from one container into another, but thankfully maker Green House has also put together an instructional video so that we don’t get lost along the way and end up with less head on our beer than is required by Japanese law.
First, open your can of beer. Both 350ml and 500ml cans may be used, so there’s no need to buy anything other than your preferred brand to use your new foamer.
Then simply clip the Koku Awa onto the top of the can. The onomatopoeic katakana word “kachi” may or may not appear before your very eyes as the device clicks into place.
With the Koku Awa attached, get to pouring. The speed the beer can leave the can is limited by the spout, so you should see very little foam at this point, but remain calm; all will become frothy soon!
Green House advises users to fill the glass 70 percent full before unleashing the power of the frothinator. For anyone who enjoys the taste of beer without having to fight through mouthfuls of pure foam, we’d recommend filling the glass to around 85 percent.
When you’re ready for head, flick the orange switch into the “on” position.
And you’re done! One beer, tons of head. If that was all too much to take in, here’s the instructional video in full. We look forward to trying this device out in the office and the East/West debate that it inevitably sparks!
Source: Netorabo
Video/images via YouTube, Green House JP







Japanese Foam Jockey Gives Drinkers Beer Heads That Cause Westerners to Froth at the Mouth
Sonic Hour: A Perfect Head of Beer at the Touch of a Button!
Sonic Hour series returns with new portable device to make your beer foamy no matter where you go
Awesome Narita Airport beer dispenser gives a perfect pour every time 【Video】
Japan has only one airport named after a samurai, so let’s check out Kochi Ryoma【Photos】
7-Eleven Japan’s sakura sweets season is underway right now!
Ghibli’s Kiki’s Delivery Service returns to theaters with first-ever IMAX screenings and remaster
Here are the top ten foodie factory tours for the fall throughout Japan
Taking a trip using Japan’s random gacha capsule airplane ticket discount【Photos】
Sega’s Like a Dragon yakuza teaches “useless” English, let’s use it to learn some useful Japanese
Who is this mysterious large man who’s suddenly showing up on giant signs in Japan?
Is Oni Koroshi sake in a drink box wino fuel or a hidden gem?
Japan is in the grip of sticker fever and no one is safe, including us
Tokyo Skytree turns pink for the cherry blossom season
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Is Sapporio’s Snow Festival awesome enough to be worth visiting even if you hate the snow? [Pics]
Japan has trams that say “sorry” while they ride around town…but why?
Highest Starbucks in Japan set to open this spring in the Tokyo sky
Japan’s new “Cunte” contact lenses aren’t pronounced like you’re probably thinking they are
Shibuya Station’s Hachiko Gate and Yamanote Line stairway locations change next month
Yakuzen ramen restaurant in Tokyo is very different to a yakuza ramen restaurant
Starbucks Japan adds new sakura Frappuccino and cherry blossom drinks to the menu
Japan’s newest Shinkansen has no seats…or passengers [Video]
Foreigners accounting for over 80 percent of off-course skiers needing rescue in Japan’s Hokkaido
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Is China’s don’t-go-to-Japan warning affecting the lines at a popular Tokyo gyukatsu restaurant?
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
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