These do say 8yr old on the lable and box but WT from th 80's and 90's that I have found have had an ink like digital code-date on the side/bottom or neck. check it out and let me know.
My last pour of the eight year was big and I fell asleep. When I woke up I put it in the fridge and just pulled it out. I can fell the spice upen up as it warm going down, you don't get the spice in you mouth dew to being chilled. I may never put this in the fridge again.