For as long as you keep the temperature consistent with the storing temperature
Until it evaporates
Yes, you can use red wine vinegar as a substitute for red wine in a recipe, but keep in mind that it will have a more acidic and tangy flavor compared to red wine. Adjust the amount used to balance the flavors accordingly.
You probably can, but keep in mind that port is much sweeter than red wine.
You can certainly omit red wine, but keep in mind that it adds wonderful flavor and most of the alcohol burns out anyway.
Yes you can, as long as it was not opened, and wine is not dated.
Yes, tannins provide flavor and long life to a wine.
Yes, you can substitute white wine vinegar for red wine vinegar in a recipe, but keep in mind that the flavor may be slightly different due to the different types of wine used in the vinegar.
Minutes, probably. Red wine should not be left unopened. The wine continues to oxydize. It should be sealed if not finished.
No, red wine vinegar and red cooking wine are not the same. Red wine vinegar is made from fermented red wine and has a sour taste, while red cooking wine is wine that has been specially made for cooking and has a lower alcohol content.
Not all wine is red. There are also types of white wine and rose wine. But, red wine is red because of the reddish color of the grapes it is made out of.
Red Wine. :D
Indefinitely