They come in 1-4 bottles. 2-4 bottle stacks are rarer deco. Many of the booze types are named for player taverns (often blessed establishments) from the early days of UO, while others are based on Ultima lore and other things.
And, they aren't "Rising Tide" - those liquor caches are an original part of High Seas.
Some of them are worth clean-up points, and I know a guild on my shard that stocks bartenders in their guild meeting areas with the stuff.