Michelob Ultra is upgrading its beer cans to the same aluminum used in Apple MacBooks. According to Rio Tinto Group, the cans are partly made using a carbon-free process.

The metal comes from Elysis, a joint venture between Rio Tinto and Alcoa. Apple is one of the company’s backers. The aluminum-making process emits oxygen instead of CO2. Rio Tinto says that 2.5 million cans will be distributed over the coming months.

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