Term for different qualities of a wine, even though it is the same producer and wine. The simple reason for this is that the maturation or aging process in the individual containers is never 100% identical during the expansion and storage of wines. Especially with barrel aging
in smaller containers such as barriques there is the phenomenon that (slightly) different wine qualities result. By leveling
(Mixing together) containers before bottling
this will be compensated. But also with the bottle aging
different qualities can arise over time. You can also wine faults
such as the corked
only occur in individual bottles.