Rozes’ White Reserve Porto and LBV Porto

[jv38]

I bought these two Port Wines after a tasting. The LBV was good, textbook port by my limited experience. The White Reserve Port was like nothing that I tried before. It have the nose of hazelnut similar to a Dry Sherry, but with the sweetness and palate of raisins that characterize Port.

Anyway, my question is, I'm tempted to open the White Port but because I only like drinking a glass per night of port (or any sweet wine), I'm concern that this wine may not survive after I open it more than two days. How long do you think this will last in good condition after opening? What about the LBV? I know that it may not last as long as the Ruby or Tawny, but not sure how long.

I will post notes on both these when I open them.