Storing Scotch / Whisky
Here are some guidelines to follow when storing Scotch / whisky:
1. If the Scotch came in a 'presentation type' box - keep it in there - this box is not only for aesthetics, but designed to protect the whisky.
2. Keep your whisky in a cupboard - or liquor cabinet. The key is to keep it OUT of the sunlight.
3. Temperature - what's ideal? First, don't expose it to extremes of temperatures and second, keep it at what's known as 'cellar temperatures' - which is between 65 and 67 degrees Fahrenheit, or 18.3 - 19.4 Celsius. Now we realize not everyone has the opportunity to store it in 'cellar like temps', but it is considered the ideal way to do it.
4. Store whisky in an upright position - you want to keep the Scotch AWAY from contact with the cork.
Your opened bottles of Scotch should not vary month to month, but it is possible there can be subtle changes over the years if air gets to it. My personal opinion is to drink it at least within a few years, however, keep in mind that after many years, a properly sealed and kept bottle should be just fine.
Sounds like you have a great selection of Scotch!
Enjoy your holidays - Cheers!