Shrink frames in beamer export from orgmode

Question

How can I send a shrink option to a beamer frame?

I already tried with

*** frame title
:PROPERTIES:
:BEAMER_envargs: [shrink=5]
:END:

as suggested in https://lists.gnu.org/archive/html/emacs-orgmode/2011-01/msg00078.html, but it didn't work.

Answer 1

It should be BEAMER_opt, not BEAMER_envargs.