【How-to】Should merlot be chilled - Howto.org

When sealed and stored in a cool, dark place or a fridge, red wines like Shiraz, Cabernet Sauvignon, Merlot and Malbec can last for around four days. As a general rule, red wines with higher tannin and acidity tend to last longer once opened. Late harvest reds can also stay fresh for up to four days.