Uisce Beatha was a pre-War company.
Background
The company produced triple-distilled whiskey beginning in 1798.
Notes
The whiskey appears on a chalkboard in the Nukashine.
Appearances
Uisce Beatha-branded bottles of whiskey, empty and full, appear as junk items and consumables respectively in Fallout 4 and Fallout 76.
Behind the scenes
Uisce Beatha is Irish and translates as "water of life", stemming from the Old Irish words for water (uisce) and life (bethu,) and is used to refer to whiskey in both Ireland and Scotland.
Gallery
Mentioned on the Nukashine chalkboard