How long does an unopened bottle of gluwein last?

An unopened bottle of glühwein can last for about 1 to 2 years when stored in a cool, dark place. The shelf life may vary depending on the specific ingredients and preservatives used in the glühwein. It's important to check the label for any expiration dates or recommendations from the manufacturer. Once opened, it’s best consumed within a few days to a week for optimal flavor.