Yeastfolk have advantage on saving throws against poison and immune to poison damage 

Yeastfolk have advantage on Charisma checks when persuading others to drink or indulge in fermented beverages.

 Yeastfolk are skilled at causing chaos and mayhem. Once per day they can cast Confusion at a number of creatures they can see within range without expending a spell slot or using material components. Affected creatures must make a Wisdom Saving throw or be affected by the spell. Creatures intoxicated by the Yeastfolk's Brewed Bravado ability has their saving throw by a number of d4's equal to the amount of ale the creature has consumed (minimum 1) and the Yeastfolk gains an extra  expendable use to cast this spell.