Generally, Rioja wines are aged in oak barrels resulting in a lingering and round oaky taste. They are considered to be full-bodied and young wines so they will need more time to be decanted, about 1 to 2 hours should be good. ... If yes, then you should decant it. Just remember that not all Rioja wines are the same.

Should you let Rioja breathe?

But for the purposes of aerating a wine, they are not necessary, as you will see below. Viña Tondonia Rioja - 2004 - Likely to have sediment, and not so old as to be fragile, so decanting is preferred. ... Many more wines will benefit from breathing than need to have sediment removed.

What wines should not be decanted?

Up to 30 minutes if the wine shows signs of reduction.

Most white and rosé wines don't need to be decanted. In fact, some aromatic compounds, like the passionfruit flavor in Sauvignon Blanc, waft away! So, the only reason you might want to decant a white or a rosé wine is if it's “reduced.”