Can I use 10 year old thermal paste?

Can I use 10 year old thermal paste? In general, thermal greases take around four years to expire, but if you buy N-B Max Pro, it will work well for 5+ years after the manufacturing date. However, the unopened thermal paste may expire soon if you keep it under direct sunlight and at wet or humid places.

In general, thermal greases take around four years to expire, but if you buy N-B Max Pro, it will work well for 5+ years after the manufacturing date. However, the unopened thermal paste may expire soon if you keep it under direct sunlight and at wet or humid places.