
Kelp yourself to an extra flavorful cup of sake or soup.
Umami is a somewhat elusive flavor in western cuisine, and even explaining it can be tricky but one food that is a good example of the tart, earthy taste is kombu, Japanese kelp. Mostly used as a soup stock, kombu is also pickled as a side dish or brewed into a tea.
And now it would seem that Hokkaido seafood company Nakai Eisaku has even created tableware from kelp. The Kombu Guinomi is a small cup crafted from a thick compound of kelp sourced from Hidaka, Hokkaido along with flour and potato starch.
The cup isn’t edible…well, I guess it technically is edible but no one is advising it. It is perishable though, and can only be used a certain amount of times before it begins to crack. Still, at 550 yen (US$5) a cup, its not a bad deal.
Our writer Masami K ordered one from the online shop linked below to see how Kombu Guinomi could enhance a few classic Japanese tastes.
As mentioned in the name, this is a “guinomi” which is a class of sake cup that is slightly larger that the very tiny ochoko cup that is also associated with the Japanese drink.
▼ The bottom of the cup
Picking it up, it was really light and felt a little soft, but also thick and durable – kind of like a nerf sake cup. Masami could easily feel the kombu texture and it even smelled faintly of a rocky sea shore.
Since certain varieties of sake are also rich in umami flavor, this seemed like a perfect match. Masami grabbed a bottle and filled her Kombu Guiomi up. She followed the instructions which said sake or tea should be left to sit for a while before drinking to allow the kelp time to infuse.
After taking a gulp, Masami could detect the kelp both where her lips touched the cup and in an aroma that filled her mouth and nose. Kelp is something of an acquired taste, so this might not appeal to everyone, but as someone who came from a coastal town, she appreciated the nautical touch it brought.
Still, it wasn’t enough to make her crave more. She felt this cup had some potential but wasn’t sure how to fully unlock it. It was her friend who suggested: “Kelp is used in soup, so why not drink miso soup from it?”
After whipping up a pot, Masami poured a Kombu Guinomi and again let it sit for a bit. Sure enough, the umami of the kelp really amplified the savory taste of the soup once again bringing full taste to her lips and nose.
Again, you probably need to be on board with the taste of kelp before diving into a Kombu Guinomi. But for kombu fans, it can be a really fun experiment to combine with different things and see what works. Seems like a really nice chawanmushi could be made if the cup holds up to the cooking.
Source: Nakai Eisaku Shop
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 ]








We read and then eat a rare edition of the Hokkaido Shimbun newspaper made out of kelp
Ice cream with Japanese dashi kelp stock shocks us enough to try it【Taste test】
Alcoholic soup in a cup now on sale to keep Japan warm and buzzed this winter
Which convenience store onigiri rice balls are the most popular? Survey reveals surprising results
Tokyo street sweets: The must-snack treats of Nakano’s Refutei
Japanese restaurant chain serves Dragon Ball donuts and Senzu Beans this spring
Japan has only one airport named after a samurai, so let’s check out Kochi Ryoma【Photos】
Expensive Japanese nail clippers: Are they worth it?
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
This amazing water cake just may be the most delicate sweet ever created!
Which Japanese convenience store sells the best pizzas?【Taste test】
Eight Ways You Really, Really Shouldn’t Use a Japanese Toilet
Cherry blossom forecasts map shows Japan’s OTHER sakura season is starting right now
Highest Starbucks in Japan set to open this spring in the Tokyo sky
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Tokyo Skytree turns pink for the cherry blossom season
Yakuzen ramen restaurant in Tokyo is very different to a yakuza ramen restaurant
Shibuya Station’s Hachiko Gate and Yamanote Line stairway locations change next month
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Starbucks Japan adds new sakura Frappuccino and cherry blossom drinks to the menu
Japan Extreme Budget Travel! A trip from Tokyo to Izumo for just 30,000 yen [Part 1]
Japan’s new “Cunte” contact lenses aren’t pronounced like you’re probably thinking they are
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