The lightweight design of the world’s lightest aluminum can is made possible by reinforcing the bottom of the can using compression bottom reform (CBR) technology. This marks the first mass production of the 190 ml 202 SOT aTULC (Aluminum Toyo Ultimate Can) with CBR technology.
Furthermore, the world's lightest can earned a joint Appropriate Packaging Award for Toyo Seikan and Coca-Cola Japan Co., Ltd in the Packaging Technology category of the Japan Packaging Contest 2024.
*1 According to Toyo Seikan research as of August 2024. The weight is calculated when the can is empty, excluding any laminate film on the can body or lid.
*2 Georgia is a registered trademark of The Coca-Cola Company.
Using CBR technology, Toyo Seikan has reduced the weight of its 190 ml 202 diameter SOT cans by 0.9 g, from 7.0 g to 6.1 g. This lower weight results in an 8% reduction in greenhouse gas (GHG) emissions per can compared to existing cans. If CBR were implemented in all aluminum beverage cans where applicable, GHG emissions would be reduced by an estimated 40,000 metric tons*3 annually.
*3 Based on the manufacturing records of the current specification aluminum beverage cans at Toyo Seikan in the fiscal year 2022 and the GHG reduction per can for the lightest can in the domestic market.
CBR is an innovative technology that allows for both high can-bottom compression strength and lightweight design, surpassing traditional can manufacturing techniques. It contributes to the reduction of GHG emissions by minimizing the use of aluminum materials. Toyo Seikan is currently expanding the implementation of CBR across its manufacturing bases nationwide. In addition to the 190 ml can mentioned earlier, Toyo Seikan is also using CBR to manufacture aluminum cans for 350 ml and 500 ml products. This initiative aims to promote the adoption of the lightest aluminum cans and further reduce GHG emissions.