I can't figure out what "seals" or "break" mean in this sentence. What am I missing here?

>Focaccia taught me to read the seals on olive oil in the supermarket and actually pick the right one for the break.

Come on, you can't just drop that morsel without telling us what we should be looking for in the right olive oil for focaccia.

Wait, did I write this? Same, same, same.