Everything changes once the bottle's been opened and exposed to air,
especially on anything that's low/non-alcoholic. Something that could have a 2
year shelf life unopened, could theoretically only last two days once it's
been opened.
As for bitters, I think that would follow the typical shelf life of a liquor
(nearly indefinite) as it has a rather high alcohol content.
--
Cheers! - Josh @ BarSim
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BarSim (tm) - The Ultimate Bartending Simulation
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