'Nama Jokki Can' Wins 'Invention Award' at the 2026 National Invention Awards
Asahi Breweries announced that its core technology for the 'Nama Jokki Can' has received the 'Invention Award' at the Reiwa 8 (2026) National Invention Awards. This world-first technology achieves natural foaming through a special microscopic structure on the inner surface of the can. Since its launch in 2021, the product has been recognized for creating new value in the beer market by providing a bar-quality draught beer experience at home.
📋 Article Processing Timeline
- 📰 Published: May 26, 2026 at 23:00
- 🔍 Collected: May 26, 2026 at 14:31
- 🤖 AI Analyzed: May 26, 2026 at 16:50 (2h 19m after Collected)
## 'Nama Jokki Can' Recognized with Invention Award at National Awards 2026
Asahi Breweries, Ltd. has been honored with the 'Invention Award' at the Reiwa 8 (2026) National Invention Awards, hosted by the Japan Institute of Invention and Innovation. The award was granted for the 'Invention of a Canned Beer Combining a Foaming Body and a Full-Open Lid.'
The recognized technology is the innovative container system known as the 'Nama Jokki Can.' When the lid is fully opened, fine bubbles appear naturally, allowing consumers to enjoy the taste and texture of draught beer served in a mug at a restaurant from the comfort of their home. As a world-first product launched in April 2021 as 'Asahi Super Dry Nama Jokki Can,' it has received overwhelming acclaim from consumers.
### The Core Technology: Microscopic Crater Structure
The defining feature of the 'Nama Jokki Can'—its natural foaming—is made possible by a 'microscopic crater-like structure' created by a special coating applied to the can's interior. Key technical specifications include:
- **Precision Bump Design**: Distribution of 200 to 1,200 bumps (5–20㎛ diameter) per square millimeter.
- **Complex Layering**: High-density combination with even smaller bumps (less than 0.5–5㎛ diameter).
- **Foaming Mechanism**: The sudden change in air pressure upon opening triggers the continuous rise of fine bubbles from these microscopic structures.
In addition to the foaming tech, safety is a priority. The 'Full-Open Lid' is specifically designed to prevent any injury to the hands or mouth, enabling a seamless 'mug-like' drinking experience directly from the can.
### Market Impact and Future Outlook
This invention overturned the industry norm of 'preventing foam in canned beer' and delivered a new value proposition of 'a bar-like experience at home' to a wide range of generations, including young adults. The 'Jokki Can Series' has now expanded beyond Asahi Super Dry to include limited-edition releases of other brands like 'Asahi Style Free' and 'Clear Asahi.'
The 'Asahi Super Dry Nama Jokki Can' refreshed its package design on March 10, 2026. Since April 27, a new TV commercial titled 'Different Expressions' has been airing to promote its unique value of 'delicious foam,' maintaining strong sales momentum.
Asahi Breweries continues to strive for 'creating deliciousness beyond expectations and a fun living culture' through ongoing technological innovation.
#### About the National Invention Awards
Established in 1919, this is one of Japan's leading award systems aimed at contributing to the improvement of science and technology and industrial development. It honors individuals and organizations for outstanding inventions with significant social impact and future potential.
Asahi Breweries, Ltd. has been honored with the 'Invention Award' at the Reiwa 8 (2026) National Invention Awards, hosted by the Japan Institute of Invention and Innovation. The award was granted for the 'Invention of a Canned Beer Combining a Foaming Body and a Full-Open Lid.'
The recognized technology is the innovative container system known as the 'Nama Jokki Can.' When the lid is fully opened, fine bubbles appear naturally, allowing consumers to enjoy the taste and texture of draught beer served in a mug at a restaurant from the comfort of their home. As a world-first product launched in April 2021 as 'Asahi Super Dry Nama Jokki Can,' it has received overwhelming acclaim from consumers.
### The Core Technology: Microscopic Crater Structure
The defining feature of the 'Nama Jokki Can'—its natural foaming—is made possible by a 'microscopic crater-like structure' created by a special coating applied to the can's interior. Key technical specifications include:
- **Precision Bump Design**: Distribution of 200 to 1,200 bumps (5–20㎛ diameter) per square millimeter.
- **Complex Layering**: High-density combination with even smaller bumps (less than 0.5–5㎛ diameter).
- **Foaming Mechanism**: The sudden change in air pressure upon opening triggers the continuous rise of fine bubbles from these microscopic structures.
In addition to the foaming tech, safety is a priority. The 'Full-Open Lid' is specifically designed to prevent any injury to the hands or mouth, enabling a seamless 'mug-like' drinking experience directly from the can.
### Market Impact and Future Outlook
This invention overturned the industry norm of 'preventing foam in canned beer' and delivered a new value proposition of 'a bar-like experience at home' to a wide range of generations, including young adults. The 'Jokki Can Series' has now expanded beyond Asahi Super Dry to include limited-edition releases of other brands like 'Asahi Style Free' and 'Clear Asahi.'
The 'Asahi Super Dry Nama Jokki Can' refreshed its package design on March 10, 2026. Since April 27, a new TV commercial titled 'Different Expressions' has been airing to promote its unique value of 'delicious foam,' maintaining strong sales momentum.
Asahi Breweries continues to strive for 'creating deliciousness beyond expectations and a fun living culture' through ongoing technological innovation.
#### About the National Invention Awards
Established in 1919, this is one of Japan's leading award systems aimed at contributing to the improvement of science and technology and industrial development. It honors individuals and organizations for outstanding inventions with significant social impact and future potential.
FAQ
Why does Asahi's 'Nama Jokki Can' produce foam?
Microscopic crater-like bumps created by a special interior coating react to the change in air pressure when the lid is opened, triggering the continuous creation of fine bubbles.
What was the reason for the Invention Award?
The award recognizes the unconventional idea of 'intentionally creating foam,' the precision engineering that realized it, and the contribution to creating new market value by attracting younger consumers.
Is the full-open lid safe to drink from?
Yes, it features a special safety-oriented design to prevent cuts to the hands or mouth, allowing you to drink directly from the can like a mug safely.