Photo: Kokubo Press
new products

Quick hardening powder turns your leftover noodle broth into a solid

By grape Japan

Many of us like to savor our instant noodles right down to the last drop of soup and seasoning, but those who are counting their calories or simply can't finish the meal often end up with leftover soup. While it's normally fine to just pour down a sink, this can lead to drain clogging, poor workplace manners, and (especially in Japan), disposal not regarded as eco-friendly, especially when outdoors.

In response to such concerns Nissin Cup Noodle released a special powder that hardens leftover soup into a solid earlier this year. The powder was only available as a limited edition gift, however.

Japanese cooking and kitchen supply makers Kokubo has come to rescue with a wide release of their own hardening solution available in packets that make for super quick and environmentally friendly disposal of your leftover instant noodles.

Like its Cup Noodle relative, Kokubo Press developed the powder to make throwing away leftover instant noodle soup less inconvenient and more in line with SDG (Sustainable Development Goal) based thinking. After simply adding one packet and stirring for a moment, the leftover soup will harden into a jelly-like substance before solidifying more, making it quick and safe to throw away whether at home, in the workplace, or outdoors where there aren't any trash cans around.

Pour the packet in


Stir for 10 seconds


Watch the leftover soup harden


Quick and easy disposal


The package also comes with English instructions.


Packets can be purchased in Japan from Kiyou Jochugiku, although those overseas can find it on Amazon.


Read more stories from grape Japan.

-- Japanese Twitter wowed by generous service of massive and delicious yellowtail sashimi

-- CHEESE WONDER releases winter limited bite size cheesecake “CHEESE WONDER BLACK”

-- An Amazing Collaboration Between Hololive and Lawson!

© grape Japan

©2022 GPlusMedia Inc.

Login to comment

You shouldn't have left over food in the first place. If you do, then it is supposed to be put into waste food bin.

3 ( +3 / -0 )

disposal not regarded as eco-friendly, especially when outdoors.

This is idiotic, I hate this so much.

A) pouring liquid waste down the drain has almost zero environmental consequences. It does not have enough oil to clog drains.

B) The "eco friendly" solution comes double wrapped in plastic, which just by itself creates more harmful waste than the leftover broth itself.

C) When used it turns the liquid broth into solid waste, which is worse.

D) That solid waste is then put in the trash system, where it will be transported by truck (CO2 emission) to an incinerator where it will be burned (more CO2 emissions).

E) The process of producing and distributing these stupid packets is also going to have an environmental footprint bigger than the broth itself.

 Kokubo Press developed the powder to make throwing away leftover instant noodle soup less inconvenient and more in line with SDG (Sustainable Development Goal) based thinking. 

Oh god no, please just stop writing this it is such BS.

2 ( +2 / -0 )

What is leftover noodle broth? I pour it over more noodles or rice. No leftovers at all.

1 ( +1 / -0 )

Agree with @rainyday 12:58pm. Leave it to ‘J-ingenuity to create more waste’ in an effort ‘to provide convenience’ for handling waste. Smaller instant noodle portions are also sold if you’re that concerned with waste.

0 ( +0 / -0 )

Login to leave a comment

Facebook users

Use your Facebook account to login or register with JapanToday. By doing so, you will also receive an email inviting you to receive our news alerts.

Facebook Connect

Login with your JapanToday account

User registration

Articles, Offers & Useful Resources

A mix of what's trending on our other sites