definition
Bottle variation is a clearly defined technical term in the context of chemistry, fermentation, stability, or bottle aging of wine.
System model
Bottle variation is described as a clearly definable quantity within a technical reference framework, the internal logic of which is independent of evaluation, objective or application.
Demarcation
Are you 18 or older?
It looks like you're not old enough to shop with us, come back when you're 18 or older.