Vacuum sealing packages of tobacco

[andrew]

I just received 2 250 gram boxes of Samuel Gawaith tobacco that were vacuum sealed by the seller, so I did some research about the pros and cons of leaving it as is, or jarring it. Well I found the answer to this topic that has been discussed on here sometimes. I will definitely jar it as vacuum sealing stops aging from happening

http://www.glpease.com/Articles/vacuum.html

 

[bonanzadriver]

Thanks for the post Andy

 

[thomasmartin]

Tins are vacuum sealed.....

 

[hillbillyjosh]

If the tin seal has been broken. I can see where he would have wanted to vacuum seal it. If it's not Mylar it's porous and will eventually gas out through the bag, if it's like the food saver kind.
Is the tin convexed? Like it has a negative pressure? If it doesn't I would pull it out and jar it immediately.