While most bottles of wine can last years unopened, they will eventually break down. But due to its unusual heating and aging process, an unopened bottle of Madeira wine can last hundreds of years. Even when you open it, Madeira can last for months and even years.
How long can you keep Madeira?
How long does opened Madeira last at room temperature? An opened bottle of Madeira will usually maintain best quality for about 3 years, although it will stay safe indefinitely if properly stored; fine Madeira can retain top quality for many years, even after opening.
Should Madeira wine be refrigerated after opening?
Marsala and Madeira
If you have a little Marsala or Madeira wine as an after-dinner drink, tuck it away in the fridge afterward. The good news is that if you use that same Marsala to cook chicken Marsala with later, you'll have a little wiggle room to let it sit for a month or two in the fridge.