A can for extemporaneous preparation of beverages by extraction and/or infusion including a first chamber configured to collect a final beverage, a second chamber containing a drinkable liquid, and a filtering device containing a substance to produce the required beverage by extraction and/or infusion. The can is configured to be put onto a heating source after opening the can lid and operating the filtering device by the user. The lid includes: an outer rim portion configured to remain fixed to the can lateral wall when opening the can; an inner removable portion configured to be ripped to open the can; and a predetermined breaking line separating the inner removable portion from the outer rim portion. The breaking line is provided in an annular portion forming part of the lid and made of plastic material. The outer part of the annular portion part of the outer rim portion while the inner part thereof is part of the inner removable portion.