guest beer
US /ˈɡest bɪr/
UK /ˈɡest bɪr/

1.
cerveza invitada
a beer, typically an ale, brewed by a different brewery than the one operating the pub or bar, offered temporarily alongside the regular selection
:
•
This week's guest beer is a rich stout from a local microbrewery.
La cerveza invitada de esta semana es una stout rica de una microcervecería local.
•
They always have an interesting selection of guest beers on tap.
Siempre tienen una interesante selección de cervezas invitadas de barril.