This is essential for Vintage Port and for older reds (which naturally throw a deposit). Aeration is a by-product of decanting, though wine is most efficiently aerated ('allowed to breathe') by swirling in the glass.
Used especially for Loire Chenin Blanc, as well as for some sparkling wines
Denominacin de origen (Sp.)
Denominacin de origen calificada (Sp.)
Denominao de origem controlada (Por.)
Denominazione di origine controllata (e garantita) (It.)