Subject: Archiving/Safeguarding BeoCord 3300 and 4500 drive belts

I have obtained/purchase spare drive belt(s) for my BeoCord 3300 and 4500. As I know these belts can degrade into strict black mess over the years I'm wondering how best to preserve my spare belts?

Keep them out of sunlight and in a cool place maybe ?

Keep them in the freezer maybe?

How do the Beoparts-shop preserve their stock of drive belts I wonder ?

Thoughts... Thanks. 🙂