I have a 900 ml can of Saloio olive oil. I lack any idea of how to open it.
The top of the tin is more-or-less seamless (see photo), and lacks any sort of indicator as to how this may be accomplished. At the rim, the metal on the top folds over the outside of the tin, and I've tried wedging flat instruments of all manner in there to no avail.
So, I'm wondering: what is the best way to open a container like this?